94-19787. Proposed Rule: Safety Standard for Bicycle Helmets  

  • [Federal Register Volume 59, Number 156 (Monday, August 15, 1994)]
    [Unknown Section]
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    From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
    [FR Doc No: 94-19787]
    
    
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    [Federal Register: August 15, 1994]
    
    
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    CONSUMER PRODUCT SAFETY COMMISSION
    
    16 CFR Part 1203
    
     
    
    Proposed Rule: Safety Standard for Bicycle Helmets
    
    AGENCY: Consumer Product Safety Commission.
    
    ACTION: Proposed rule.
    
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    SUMMARY: Pursuant to the Children's Bicycle Helmet Safety Act of 1994, 
    the Commission is proposing a safety standard that would require 
    bicycle helmets to meet impact-attenuation and other requirements. In 
    addition to requirements derived from one or more of the voluntary 
    standards applicable to this product, the proposed standard includes 
    requirements specifically applicable to children's helmets and 
    requirements to prevent helmets from coming off during an accident.
        The Commission is also proposing testing and recordkeeping 
    requirements so it can ensure that helmets subject to the standard meet 
    its requirements.
    
    DATES: Comments on the proposal should be submitted no later than 
    October 31, 1994.
    
    ADDRESSES: Comments should be mailed to the Office of the Secretary, 
    Consumer Product Safety Commission, Washington, D.C. 20207, or 
    delivered to the Office of the Secretary, Consumer Product Safety 
    Commission, room 502, 4330 East-West Highway, Bethesda, Maryland 20814-
    4408, telephone (301) 504-0800.
    
    FOR FURTHER INFORMATION CONTACT: Scott Heh, Project Manager, 
    Directorate for Engineering Sciences, Consumer Product Safety 
    Commission, Washington, D.C. 20207; telephone (301) 504-0494 ext. 1308.
    
    SUPPLEMENTARY INFORMATION:
    
    A. Background
    
        The Commission estimates that, on average, one-half million 
    bicycle-related injuries are treated annually in U.S. hospital 
    emergency rooms. In addition, 1,000 fatalities occur each year, 
    according to the National Safety Council. A 1993 Commission study of 
    bicycle use and hazard patterns indicated that almost one-third of the 
    injuries involved the head and that about 18 percent of bicyclists wear 
    helmets.\1\ Published data indicate that, in recent years, almost two-
    thirds of all bicycle-related deaths involved head injury.\2\
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        \1\Gregory B. Rodgers, Deborah K. Tinsworth, Curtis Polen, 
    Suzanne Cassidy, Celestine M. Trainor, Scott R. Heh, Mary F. 
    Donaldson, ``Bicycle Use and Hazard Patterns in the United States,'' 
    U.S. Consumer Product Safety Commission (June 1994).
        \2\Jeffrey J. Sachs, MPH; Patricia Holmgreen, M.S.; Suzanne M. 
    Smith, M.D.; and Daniel M. Sosin, M.D., ``Bicycle-Associated Head 
    Injuries and Deaths in the United States from 1984 through 1988,'' 
    Journal of the American Medical Association 266 (December 1991): 
    3016-3018.
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        Younger children are at particular risk of head injury. The 
    Commission's study showed that one-half of the injuries to children 
    under the age of 10 involved the head, whereas the head was involved in 
    only about one-fifth of the injuries to older children. Children were 
    also less likely to have been wearing a helmet at the time of a 
    bicycle-related incident than were adults. Research has shown that 
    helmets may reduce the risk of head injury to bicyclists by about 85 
    percent, and the risk of brain injury by about 88 percent.\3\
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        \3\Robert S. Thompson, M.D.; Frederic P. Rivara, M.D.; and Diane 
    C. Thompson, M.S., ``A Case Control Study of the Effectiveness of 
    Bicycle Safety Helmets,'' The New England Journal of Medicine 320 
    (May 1989): 1361-1367.
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        On June 16, 1994, the Children's Bicycle Helmet Safety Act of 1994 
    (the ``Act'') was enacted. This Act provides that bicycle helmets 
    manufactured more than 9 months from that date shall conform to any of 
    the following interim safety standards: (1) The American National 
    Standards Institute (ANSI) standard designated as Z90.4-1984, (2) the 
    Snell Memorial Foundation standard designated as B-90, (3) the ASTM, 
    formerly the American Society for Testing and Materials, standard 
    designated as F 1447, or (4) any other standard that the Commission 
    determines is appropriate. To date, the Commission has not determined 
    that any standard other than the ones specifically mentioned in the Act 
    is appropriate as an interim standard. The Act provides that failure to 
    conform to an interim standard shall be considered a violation of a 
    consumer product safety standard issued under the Consumer Product 
    Safety Act (CPSA), 15 U.S.C. 2051-2084.
        The Act also directs the Consumer Product Safety Commission to 
    begin a proceeding under 5 U.S.C. 553 to:
        1. review the requirements of the interim standards described above 
    and establish a final standard based on such requirements,
        2. include in the final standard a provision to protect against the 
    risk of helmets coming off the heads of bicycle riders,
        3. include in the final standard provisions that address the risk 
    of injury to children, and
        4. include additional provisions as appropriate.
        The Act provides that the final standard shall take effect 1 year 
    from the date it is issued and that the standard shall be considered to 
    be a consumer product safety standard issued under the CPSA. However, 
    the Act also provides that the provisions of the CPSA regarding 
    rulemaking procedure, statutory findings, and judicial review (15 
    U.S.C. 2056, 2058, 2060, and 2079(d)) shall not apply to this 
    proceeding or to the final standard. When the final standard becomes 
    effective, it will replace the interim standards.
    
    B. Proposed Regulation
    
        The Commission has reviewed the bicycle helmet standards identified 
    in the Act (ANSI, ASTM, and Snell, collectively referred to as the 
    ``current U.S. voluntary bicycle helmet standards''), as well as 
    international bicycle helmet standards and draft revisions of the ANSI, 
    ASTM, and Snell standards that are currently under consideration. Based 
    on this review, the Commission has developed a proposed mandatory 
    safety standard for bicycle helmets. When the final safety standard is 
    issued, it will be codified as 16 CFR Part 1203.
        The current U.S. voluntary bicycle helmet standards include 
    requirements for general construction, labeling, peripheral vision, 
    impact attenuation, and dynamic strength of the retention system. The 
    requirements proposed for the mandatory standard in each of these 
    categories, and additional provisions addressing the risk of helmets 
    coming off the heads of bicycle riders and the risk of injury to 
    children, are discussed below. The reasons for the major choices made 
    by the Commission in creating the proposed rule are noted below. 
    Additional reasons are stated in a Commission document, Proposed Safety 
    Standard for Bicycle Helmets Authorized by the Children's Bicycle 
    Helmet Safety Act of 1994, July 1994, Scott Heh, Project Manager (Tab B 
    of Briefing Package).
    
    General Construction
    
        Section 1203.5 of the proposed mandatory standard includes 
    provisions that address general construction characteristics of a 
    bicycle helmet. Helmets shall be designed to reduce the acceleration 
    forces imparted to the wearer's head by an impact and to remain on the 
    wearer's head during impact. Helmets shall be constructed not to be 
    harmful or potentially injurious to the wearer. For example, the helmet 
    surface shall not have projections that may increase the likelihood of 
    injury to the rider during an accident.
        Construction materials shall be resistant to environmental 
    conditions that may be reasonably expected during helmet use and 
    storage and shall not be harmful to the wearer.
    
    Labeling and Instructions
    
        Section 1203.6 of the proposed mandatory standard requires certain 
    labels on the helmet, which are consistent with all three U.S. 
    voluntary standards. These labels provide the model designation and 
    warnings regarding the protective limitations of the helmet. The labels 
    also provide instructions regarding how to care for the helmet.
        One labeling provision differs among the ANSI, ASTM, and Snell 
    standards. ANSI requires the helmet to be labeled, ``This helmet is 
    designed only for bicycle use.'' Snell similarly requires the helmet to 
    be labeled for bicycle use only. ASTM requires the label, ``Not for 
    Motor Vehicle Use.'' Many people seek head protection for recreational 
    activities other than bicycling (e.g., roller skating). Helmets are not 
    sold specifically for many non-bicycling activities, and a bicycle 
    helmet often may be the best available means of head protection. In 
    these cases, a person should not be discouraged from using a helmet by 
    a label that states ``For Bicycle Use Only.'' Therefore, the ASTM 
    label, ``Not for Motor Vehicle Use,'' is proposed for the mandatory 
    standard. As discussed in Section H, below, the Commission will be 
    considering the issue of multi-activity helmets during the comment 
    period on this proposal.
        The proposed mandatory standard also requires that helmets be 
    accompanied by fitting and positioning instructions, including graphic 
    representation of proper positioning. The proposed mandatory standard 
    has performance criteria for the effectiveness of the retention system 
    in keeping a helmet on the wearer's head. However, these criteria may 
    not be effective if the helmet is not well matched to the wearer's head 
    and carefully adjusted to obtain the best fit. Thus, the proposed 
    mandatory standard contains the labeling requirement described above to 
    help ensure that users will purchase the proper helmet and adjust it 
    correctly.
        To avoid damaging the helmet by contacting it with harmful common 
    substances, the instructions must contain a list of any known common 
    harmful substances and instructions to avoid contact between such 
    substances and the helmet.
    
    Peripheral Vision
    
        Section 1203.14 of the proposed mandatory standard requires that a 
    helmet shall allow a field of vision of 105 degrees to both the left 
    and right of straight ahead. This requirement is consistent with the 
    ANSI, ASTM, and Snell standards.
    
    Impact Attenuation
    
        The proposed standard measures the ability of the helmet to protect 
    the head in a collision by securing the helmet on a headform and 
    dropping the helmet/headform assembly from various heights onto a fixed 
    steel anvil. ANSI and ASTM specify a 5-kg drop assembly mass for all 
    headform sizes. The Snell drop assembly mass may vary from 5 to 6.5 kg. 
    There have been discussions recently within the voluntary standards 
    organizations about whether the drop assembly mass should change with 
    headform size.
        A proposal to scale the drop assembly mass from 3.1 kg for the ISO 
    A headform (the smallest headform) to 6.1 kg for the ISO O headform 
    (the largest headform) is being considered by the ASTM Headgear 
    Subcommittee. One issue that must be considered is that the reduced 
    drop assembly mass for the smaller headform sizes precludes the use of 
    impact test apparatus that is currently used in the U.S. This is 
    because the test limits the mass of the support assembly to no more 
    than 25 percent of the mass of the total drop assembly. Allowing the 
    use of lighter headforms can reduce the total drop assembly weight to 
    the point where the support assembly exceeds the 25 percent limit.
        To permit the use of current test equipment, and to limit the 
    possibility that lab-to-lab variability may occur if the drop mass is 
    not tightly specified, a constant mass of 5 kg is proposed for the 
    mandatory standard. However, the Commission requests comment regarding 
    helmet safety benefits that may be achieved by specifying a different 
    drop mass for each headform size.
        Under the proposed standard, the helmet is tested with three types 
    of anvils (flat, hemispherical, and ``curbstone,'' as shown in Figures 
    10, 11 and 12 of the standard). These anvils represent types of 
    surfaces that may be encountered in actual riding conditions. 
    Instrumentation within the headform records the headform's impact in 
    multiples of the acceleration due to gravity (g's). Impact tests are 
    performed on different helmets, each of which has been conditioned in 
    one of four environments that may be reasonably expected during helmet 
    usage and storage. These environments are: ambient (room temperature), 
    high temperature (a minimum of 117  deg.F), low temperature (a maximum 
    of 9  deg.F), and immersion in water for 4-24 hours.
        The ASTM impact test procedures and criteria are proposed for the 
    mandatory standard (Secs. 1203.12(d) and 1203.17). The ASTM test 
    conditions are more severe than those specified by ANSI and are likely 
    more representative of actual crash conditions than the Snell test 
    procedures. Impacts are specified on a flat anvil from a height of 2 
    meters and on hemispherical and curbstone anvils from a height of 1.2 
    meters. Consistent with the requirements of the ANSI, Snell, and ASTM 
    standards, the peak acceleration of any impact shall not exceed 300 g. 
    In addition, maximum time limits of 6 ms and 3 ms are specified for the 
    duration of the impact at the 200-g and 150-g levels. Thus, the 
    proposed standard addresses both the risk of injury presented by an 
    ``instantaneous'' peak impact and the risk of injury presented if the 
    head is subjected to lower level impacts for an excessive length of 
    time.
        One deviation from the ANSI, ASTM, and Snell standards that is 
    proposed for the mandatory standard is the designation for the area of 
    the helmet that must provide impact protection. ANSI, ASTM, and Snell 
    specify different extents of required head coverage and different 
    procedures for designating the extent of protection. Comparison of the 
    three standards shows that the greatest extent of protection can be 
    achieved by combining the ANSI and ASTM procedures. ANSI requires more 
    coverage than ASTM in some areas of the head, but less than ASTM in 
    other areas. For example, while ASTM requires more coverage on the 
    front of the head for all headform sizes, ANSI requires more coverage 
    at the back of the head on the smaller headform sizes. The procedure 
    for defining the extent of protection on a helmet is detailed at 
    Sec. 1203.11.
    
    Dynamic Strength of the Retention System
    
        The dynamic strength of the retention system test addresses the 
    strength of the chin strap to ensure against breakage or excessive 
    elongation of the strap that may contribute to a helmet coming off the 
    head during an accident.
        The ANSI, ASTM, and Snell standards have somewhat different test 
    procedures and criteria for the dynamic strength of the retention 
    system. Each of the three standards likely provides a suitable test of 
    retention system strength. The ASTM specification is proposed for the 
    mandatory standard (Sec. 1203.16) and offers the advantage of using the 
    same dynamic impact specification that is used for the positional 
    stability test.
        The ASTM test requires that the chin strap remain intact and not 
    elongate more than 30 mm (1.2 inches) when subjected to a ``shock 
    load'' of a 4-kg (8.8-lb) weight falling a distance of 0.6 m (2 ft) 
    onto a steel stop anvil (see Figure 8). This test is performed on three 
    helmets after each is subjected to one of the different hot, cold, and 
    wet environments.
        Additional provisions not addressed in current U.S. voluntary 
    bicycle helmet standards.
        1. Positional stability test (roll-off test). Section 1203.15 of 
    the proposed mandatory standard specifies a test procedure and 
    requirement that are equivalent to those being considered by ASTM and 
    Snell for future revisions to their standards. This procedure tests 
    retention system effectiveness in preventing a helmet from ``rolling 
    off'' a head. The procedure specifies a dynamic impact load of a 4-kg 
    (8.8-lb) weight dropped from a height of 0.6 m (2 ft) to impact a steel 
    stop anvil. This load is applied to the edge of a helmet that is placed 
    on a headform on a support stand (See Figure 7). The helmet fails if it 
    comes off the headform during the test.
        2. Extended area of protection for small children. The proposed 
    mandatory standard specifies an increased area of head coverage for 
    small children that is not currently required in the U.S. voluntary 
    standards. A study by Biokinetics & Associates Ltd. found differences 
    in anthropometric characteristics between young children's heads and 
    older children's and adult heads. This study led to an ASTM proposal to 
    change the position of the basic plane (an anthropometric reference 
    plane that includes the external ear openings and the bottom edges of 
    the eye sockets) on the smallest test headform to be more 
    representative of children ages 4 years and under. Section 1203.11(b) 
    proposes a revised extent-of-protection requirement for helmets 
    intended for children 4 years and under based on the adjusted basic 
    plane.
    
    C. Certification and Recordkeeping
    
        Section 14(a) of the CPSA, 15 U.S.C. 2063(a), requires every 
    manufacturer (including importers) and private labeler of a product 
    that is subject to a consumer product safety standard to issue a 
    certificate that the product conforms to the applicable standard, and 
    to base that certificate either on a test of each product or on a 
    ``reasonable testing program.'' Subpart B of the proposed Safety 
    Standard for Bicycle Helmets contains such certification requirements.
        The proposed certification rule requires manufacturers of bicycle 
    helmets that are manufactured 1 year after the issue date of the final 
    standard to affix permanent labels to the helmets. These labels would 
    be the ``certificates'' of compliance, as that term is used in 
    Sec. 14(a) of the CPSA and shall state ``Complies with CPSC Safety 
    Standard for Bicycle Helmets (16 CFR 1203)''. Certification labels 
    shall also provide the name and address of the manufacturer or 
    importer, an identification of the production lot, and the month and 
    year the product was manufactured. If the label on the bicycle helmet 
    is not immediately visible to the ultimate purchaser of the helmet 
    prior to purchase because of packaging or other marketing practices, a 
    second label that states, ``Complies with CPSC Safety Standard for 
    Bicycle Helmets'' must appear on the container or, if the container is 
    not visible, on the promotional material used in connection with the 
    sale of the bicycle helmet.
        The proposed certification rule requires manufacturers and 
    importers to conduct a reasonable testing program to demonstrate that 
    their bicycle helmets comply with the requirements of the standard. 
    This reasonable testing program may be defined by the manufacturers, 
    but must include either the tests prescribed in the standard or any 
    other reasonable test procedures that assure compliance with the 
    standard.
        The proposed certification rule provides that the required testing 
    program test bicycle helmets sampled from each production lot in such a 
    manner that there is a reasonable assurance that, if the bicycle 
    helmets selected for testing meet the standard, all bicycle helmets in 
    the lot will meet the standard.
        Bicycle helmet importers may rely in good faith on the foreign 
    manufacturer's certificate of compliance, provided that a reasonable 
    testing program has been performed by or for the foreign manufacturer; 
    the importer is a U.S. resident, or has a resident agent in the U.S.; 
    and the required test records are kept in the U.S.
        In addition, a rule is proposed requiring that every person issuing 
    certificates of compliance for bicycle helmets subject to the standard 
    shall maintain written records which show that the certificates are 
    based on a reasonable testing program. These records shall be 
    maintained for a period of at least 3 years from the date of 
    certification of the last bicycle helmet in each production lot and 
    shall be available to any designated officer or employee of the 
    Commission upon request in accordance with Sec. 16(b) of the CPSA, 15 
    U.S.C. 2065(b).
    
    D. Regulatory Flexibility Act Certification
    
        When an agency undertakes a rulemaking proceeding, the Regulatory 
    Flexibility Act, 5 U.S.C. 601 et seq., generally requires the agency to 
    prepare proposed and final regulatory flexibility analyses describing 
    the impact of the rule on small businesses and other small entities. 
    The purpose of the Regulatory Flexibility Act, as stated in Sec. 2(b) 
    (5 U.S.C. 602 note), is to require agencies, consistent with their 
    objectives, to fit the requirements of regulations to the scale of the 
    businesses, organizations, and governmental jurisdictions subject to 
    the regulations. Section 605 of the Act provides that an agency is not 
    required to prepare a regulatory flexibility analysis if the head of an 
    agency certifies that the rule will not have a significant economic 
    impact on a substantial number of small entities.
        The Commission's Directorate for Economics has prepared a 
    preliminary economic assessment of the safety standard for bicycle 
    helmets. Based on this assessment, any costs associated with design 
    changes to comply with the proposed performance standard would be 
    amortized over the course of production, and would be negligible on a 
    per-unit basis. Costs associated with testing and monitoring are not 
    expected to increase, since the vast majority of manufacturers now use 
    third-party certification and will likely continue to use it in the 
    future. To the extent that the repeated testing required by the testing 
    program required by the proposed certification rule exceeds the amount 
    of testing now conducted by some bicycle helmet manufacturers, the 
    manufacturers could reduce per-test costs by performing the tests 
    themselves, rather than using the third-party testing that is now 
    performed.
        The proposed labeling requirements are unlikely to have a 
    significant impact on small firms, in that virtually all bicycle 
    helmets now bear a permanent label on the inside surface. Industry 
    sources report that, given sufficient lead time to modify these labels, 
    any increased cost of labeling would be insignificant.
        Accordingly, for the reasons given above, the Commission 
    preliminarily concludes that the safety standard for bicycle helmets 
    would not have any significant economic effect on a substantial number 
    of small entities.
    
    E. Environmental Considerations
    
        Pursuant to the National Environmental Policy Act, and in 
    accordance with the Council on Environmental Quality regulations and 
    CPSC procedures for environmental review, the Commission has assessed 
    the possible environmental effects associated with the proposed safety 
    standard for bicycle helmets.
        The Commission's regulations at 16 CFR 1021.5(c) (1) and (2) state 
    that safety standards and product labeling or certification rules for 
    consumer products normally have little or no potential for affecting 
    the human environment. Preliminary analysis of the potential impact of 
    this proposed rule indicates that the requirements of the standard are 
    not expected to have a significant effect on the materials used in 
    production or packaging, or in the amount of materials discarded due to 
    the regulation. Therefore, no significant environmental effects are 
    expected to result from the proposed rule. Because the proposed rule 
    would have no adverse effect on the environment, neither an 
    environmental assessment nor an environmental impact statement is 
    required.
    
    F. Multi-Activity Helmets
    
        There is growing interest within the consumer safety community in 
    promoting the development and use of helmets that will adequately 
    protect the wearer not only while bicycling, but while participating in 
    other nonmotorized recreational activities. The Commission solicits 
    comments regarding the feasibility of developing a standard for multi-
    activity helmets. If such a helmet standard is feasible, the Commission 
    will consider what requirements might be appropriate for inclusion in a 
    mandatory standard, so that bicycle helmets, particularly those for 
    children, may also be used effectively for other activities. Among the 
    issues to be resolved are the appropriate age groups for multi-activity 
    protection, which sports might reasonably be within the scope of multi-
    activity requirements, and the precise technical requirements that 
    would be necessary. The CPSC will host a meeting, currently scheduled 
    for 9:30 a.m., September 19, 1994, to discuss this topic. The meeting 
    will be at the Commission's Bethesda, Maryland, offices at 4330 East-
    West Highway in Room 410.
    
    List of Subjects in 16 CFR Part 1700
    
        Consumer protection, Bicycles, Infants and children.
    
        For the reasons given above, the Commission proposes to add a new 
    part 1203 of Title 16 of the Code of Federal Regulations, to read as 
    follows:
    
    PART 1700--SAFETY STANDARD FOR BICYCLE HELMETS
    
    * * * * *
    
    PART 1203--SAFETY STANDARD FOR BICYCLE HELMETS
    
    Subpart A--The Standard
    
    Sec.
    1203.1  Scope and effective date.
    1203.2  Purpose.
    1203.3  Referenced documents.
    1203.4  definitions.
    1203.5  Construction requirements.
    1203.6  Labeling and instructions.
    1203.7  Samples for testing.
    1203.8  Conditioning environments.
    1203.9  Test headforms.
    1203.10  Selecting the test headform.
    1203.11  Extent of impact protection-- marking the test line.
    1203.12  Test requirements.
    1203.13  Test schedule.
    1203.14  Peripheral vision test.
    1203.15  Positional stability test (roll-off resistance).
    1203.16  Dynamic strength of retention system test.
    1203.17  Impact attenuation test.
    
    Subpart B--Certification
    
    1203.30  Purpose and scope.
    1203.31  Effective date.
    1203.32  Definitions.
    1203.33  Certification testing.
    1203.34  Product certification and labeling by manufacturers 
    (including importers).
    
    Subpart C--Recordkeeping
    
    1203.40  Effective date.
    1203.41  Recordkeeping requirements.
    
    Appendix to Part 1203--Figures.
    
        Authority: Subpart A is issued under Secs. 201-207, Pub. L. 103-
    267, 108 Stat. 726-729, 15 U.S.C. 6001-6006. Subpart B is issued 
    under 15 U.S.C. 2063. Subpart C is issued under 15 U.S.C. 2065(b).
    
    Subpart A--The Standard
    
    
    Sec. 1203.1  Scope and effective date.
    
        This standard describes test methods and defines minimum 
    performance criteria for protective headgear used by bicyclists. The 
    values stated in SI units are the standard. The inch-pound values 
    stated in parentheses are for information only. The standard shall 
    become effective 1 year after publication of the final rule.
    
    
    Sec. 1203.2  Purpose.
    
        The purpose of this standard is to reduce the likelihood of serious 
    injury and death to bicyclists resulting from impacts to the head.
    
    
    Sec. 1203.3  Referenced documents.
    
        The following documents are referenced in this standard.
        (a) ISO/DIS Standard 6220-1983--Headforms for Use in the Testing of 
    Protective Helmets.\1\
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        \1\Available from American National Standards Institute, 11 W. 
    42nd St., 13th Floor, New York, NY 10036.
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        (b) Federal Motor Vehicle Safety Standard 218, Motorcycle 
    Helmets.\2\
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        \2\Available from the Department of Transportation, National 
    Highway Traffic Safety Administration, Office of Vehicle Safety 
    Standards, 400 7th St. S.W., Washington D.C. 20590.
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        (c) SAE Recommended Practice SAE J211 JUN80, Instrumentation for 
    Impact Tests.\3\
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        \3\Available from Society of Automotive Engineers, 400 
    Commonwealth Dr., Warrendale, PA 15096.
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    Sec. 1203.4  Definitions.
    
        (a) Basic plane means an anatomical plane that includes the 
    auditory meatuses (the external ear openings) and the inferior orbital 
    rims (the bottom edges of the eye sockets). The ISO headforms are 
    marked with a plane corresponding to this basic plane (see Figures 1 
    and 2).
        (b) Bicycle helmet means any headgear marketed as suitable for 
    providing protection from head injuries while riding a bicycle.
        (c) Comfort or fit padding means resilient lining material used to 
    configure the helmet for different ranges of head size. This padding 
    has no significant effect on impact attenuation.
        (d) Coronal plane is an anatomical plane perpendicular to both the 
    basic and midsagittal planes and containing the midpoint of a line 
    connecting the right and left auditory meatuses. The ISO headforms are 
    marked with a transverse plane corresponding to this coronal plane (see 
    Figures 1 and 2).
        (e) Field of vision is the angle of peripheral vision allowed by 
    the helmet when positioned on the reference headform.
        (f) Helmet positioning index (HPI) is the vertical distance from 
    the brow of the helmet to the basic plane, when placed on a reference 
    headform. The size of the headform and the vertical distance shall be 
    specified by the manufacturer.
        (g) Midsagittal plane is an anatomical plane perpendicular to the 
    basic plane and containing the midpoint of the line connecting the 
    notches of the right and left inferior orbital ridges and the midpoint 
    of the line connecting the superior rims of the right and left auditory 
    meatuses. The ISO headforms are marked with a longitudinal plane 
    corresponding to the midsagittal plane (see Figures 1 and 2).
        (h) Modular elastomer programmer (MEP)\4\ is a cylindrical pad used 
    as the impact surface for the spherical impactor. The MEP is 152 mm 
    (6.0 in.) in diameter, and 25 mm (1.0 in.) thick. It is affixed to the 
    top surface of a flat, 6.35 mm (0.25 in.) thick aluminum plate. The 
    hardness of the MEP is 60  2 Shore A scale durometer.
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        \4\Available from Research and Testing Company, 1415 Park Ave., 
    Hoboken, NJ 07030.
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        (i) Preload ballast is a ``bean bag'' filled with lead shot placed 
    on the helmet to secure its position on the headform. The mass of the 
    preload ballast is 5 kg (11 lb).
        (j) Projection is any part of the helmet, internal or external, 
    that extends beyond the faired surface.
        (k) Reference headform is a headform used as a measuring device and 
    contoured in the same configuration as one of the test headforms A, E, 
    J, M, and O defined in ISO DIS 6220-1983. The reference headform shall 
    include surface markings corresponding to the basic, coronal, 
    midsagittal, and reference planes (see Figures 1 and 2).
        (l) Reference plane is a plane marked on the ISO headforms at a 
    specified distance above and parallel to the basic plane (see Figure 
    3).
        (m) Retention system is the complete assembly that secures the 
    helmet in a stable position on the wearer's head.
        (n) Shield means optional equipment for helmets that is used in 
    place of goggles to protect the eyes.
        (o) Spherical impactor is a 146 mm (5.75 in.) diameter aluminum 
    sphere, with a mass of 4005  5 g (8.83  1.10 
    lb), that is specifically machined for mounting onto the ball-arm 
    connector of the drop-test assembly. The impactor is used to check the 
    electronic equipment (see Sec. 1203.17).
        (p) Test headform is a test headform of sizes A, E, J, M, and O as 
    defined in ISO/DIS 6220-1983 and constructed of K-1A magnesium alloy. 
    The test headforms shall include surface markings corresponding to the 
    basic, coronal, midsagittal, and reference planes (see Figure 2).
        (q) Test region is the area of the helmet, above a specified test 
    line, that is subject to impact testing.
        (r) Visor (peak) is optional helmet equipment for protection 
    against sun or glare, and is sometimes used as a rock or dirt 
    deflector.
    
    
    Sec. 1203.5  Construction requirements.
    
        (a) General. The helmet shall be constructed to reduce the 
    acceleration of the wearer's head and to remain on the wearer's head 
    during impact. Optional devices (such as visors and shields) fitted to 
    the helmet shall be designed so that they are unlikely to cause injury 
    in an accident. If the absence of any detachable component of the 
    helmet does not prevent its being worn, then this absence must not 
    compromise either the retention system or the helmet's impact 
    protection. If any part of the helmet detaches during testing, it must 
    not present a laceration or puncture hazard or reduce the coverage of 
    the head.
        (b) Projections. Any feature projecting more than 7 mm (0.28 in.) 
    beyond the outer surface must readily break away; all other projections 
    on the outer surface shall be smoothly faired and offer minimal 
    frictional resistance to tangential impact forces. There shall be no 
    feature on the inner surface projecting more than 2 mm (0.08 in.) into 
    the helmet interior. Any internal rigid projections that can contact 
    the wearer's head during impact shall be protected by some means of 
    cushioning.
        (c) Retention System. The retention system shall be designed and 
    constructed to meet the requirements of Sec. 1203.12(b)-(c) of this 
    standard.
        (d) Materials. Materials used in the helmet shall be durable and 
    resistant to exposure to sun, rain, cold, dust, vibration, 
    perspiration, and products likely to be applied to the skin or hair. 
    Similarly, the materials should not degrade due to temperature extremes 
    likely to be encountered in routine storage or transportation. 
    Materials known to cause skin irritation or disease shall not be used. 
    Lining materials, if used, may be detachable for washing. If 
    hydrocarbons, cleaning fluids, paints, transfers or other additions 
    will affect the helmet adversely, a warning shall be provided.
    
    
    Sec. 1203.6  Labeling and instructions.
    
        (a) Labeling. Each helmet shall be marked so that the following 
    information is easily visible and legible to the user and is likely to 
    remain legible throughout the life of the helmet:
        (1) Model designation.
        (2) A warning to the user that no helmet can protect against all 
    possible impacts, and that for maximum protection the helmet must be 
    fitted and attached properly to the wearer's head in accordance with 
    the manufacturer's fitting instructions.
        (3) A warning to the user that the helmet may, after receiving an 
    impact, be damaged to the point that it is no longer adequate to 
    protect the head against further impacts, and that this damage may not 
    be visible to the user. This label shall also state that a helmet that 
    has sustained an impact should be returned to the manufacturer for 
    competent inspection or be destroyed and replaced.
        (4) A warning to the user that the helmet can be damaged by contact 
    with common substances (for example, certain solvents, cleaners, hair 
    tonic, etc.), and that this damage may not be visible to the user. This 
    label should also contain any recommended cleaning agents and 
    procedures and list any known common substances that will cause damage.
        (5) The statement ``Not for Motor Vehicle Use'' shall be on the 
    interior of the helmet.
        (b) Instructions. Each helmet shall have the following accompanying 
    instructions:
        (1) Fitting and positioning instructions, including graphic 
    representation of proper positioning.
        (2) A list of any known common substances that are known to be 
    capable of causing damage to the helmet, and a warning against 
    contacting the helmet with these substances.
    
    
    Sec. 1203.7  Samples for testing.
    
        (a) General. Helmets shall be tested in the condition in which they 
    are offered for sale. They must pass all tests, both with and without 
    any attachments that may be included.
        (b) Number of samples. Five samples of each size for each model 
    offered for sale are required to test conformance to this standard.
    
    
    Sec. 1203.8  Conditioning environments.
    
        Helmets shall be conditioned to one of the following environments 
    prior to testing in accordance with the test schedule at Sec. 1203.13.
        (a) Ambient condition. This is the ambient condition of the test 
    laboratory, which shall be within the ranges of temperature of 17 deg. 
    C to 27 deg. C (63 deg. F to 81 deg. F) and of relative humidity of 20 
    to 80 percent. The barometric pressure in all conditioning environments 
    shall be 75 to 110 kPa (22.2 to 32.6 inches of Hg). All test helmets 
    shall be stabilized within this ambient range for at least 4 hours 
    prior to further conditioning and testing. Storage or shipment within 
    this ambient range satisfies this requirement. The ambient test helmet 
    does not need further conditioning.
        (b) Low temperature. This is a temperature of -16 deg. C to 
    -13 deg. C (3 deg. F to 9 deg. F). The helmet shall be kept in this 
    environment for 4 to 24 hours prior to testing.
        (c) High temperature. This is a temperature of 47 deg. C to 53 deg. 
    C (117 deg. F to 127 deg. F). The helmet shall be kept in this 
    environment for 4 to 24 hours prior to testing.
        (d) Water immersion. The fourth conditioning is full immersion in 
    potable water at a temperature of 15 deg. C to 27 deg. C (59 deg. F to 
    81 deg. F). The helmet shall be kept in this environment for 4 to 24 
    hours prior to testing.
    
    
    Sec. 1203.9  Test headforms.
    
        Helmets shall be tested on the appropriate size headform. The 
    headforms used for testing shall be sizes A, E, J, M, and O as defined 
    by ISO/DIS 6220-1983. Headforms used for impact testing shall be 
    constructed of K-1A magnesium alloy or other functionally equivalent 
    metal and must have no resonant frequencies below 3000 hz.
    
    
    Sec. 1203.10  Selecting the test headform.
    
        (a) Helmets shall be tested on the appropriate size test headform, 
    or two sizes of test headforms. Helmets shall be tested on the largest 
    and smallest size test headforms on which they fit. If a smaller size 
    helmet of the same model fits the smaller headform, the larger helmet 
    will be tested on the larger headform only. When two headform sizes are 
    required, each test set of five helmets will include at least one 
    peripheral vision test, dynamic retention test, positional stability 
    test, and impact attenuation test on each headform.
    
    
    Sec. 1203.11  Extent of impact protection--marking the test line.
    
        (a) For helmets intended for persons over 4 years of age. Prior to 
    testing, the extent of required protection for helmets intended for 
    persons over 4 years of age shall be determined for each helmet in the 
    following manner.
        (1) Position the helmet on the appropriate headform as specified by 
    the manufacturer's head positioning index (HPI) with the brow parallel 
    to the basic plane. Place a 5-kg (11-lb) preload ballast weight on top 
    of the helmet to set the fit padding.
        (2) A line shall be drawn on the outer surface of the helmet 
    coinciding with portions of the intersection of that surface of the 
    helmet with the following planes (see Figure 4):
        (i) A plane h mm above and parallel to the basic plane in the 
    anterior portion of the reference headform;
        (ii) A vertical transverse plane a mm in front of the external ear 
    opening in a side view:
        (iii) A plane i mm above and parallel to the basic plane of the 
    reference headform;
        (iv) A vertical transverse plane b mm behind the center of the 
    external ear opening in a side view; and
        (v) A plane j mm above and parallel to the basic plane in the 
    posterior portion of the reference headform.
        (3) Each of the dimensions h, a, i, b, and j are shown in the table 
    below for reference headforms A through O. 
    
                                        Table 1.--Reference Headform Dimensions                                     
    ----------------------------------------------------------------------------------------------------------------
                    ISO Headform Size                h mm (in.)   a mm (in.)   i mm (in.)   b mm (in.)   j mm (in.) 
    ----------------------------------------------------------------------------------------------------------------
    A..............................................           60           29           54           29           29
                                                          (2.36)       (1.14)       (2.13)       (1.14)       (1.14)
    E..............................................           60           32           56           32           31
                                                          (2.36)       (1.26)       (2.20)       (1.26)       (1.22)
    J..............................................           60           34           60           34           35
                                                          (2.36)       (1.34)       (2.36)       (1.34)       (1.38)
    M..............................................           60           35           60           35           35
                                                          (2.36)       (1.38)       (2.36)       (1.38)       (1.38)
    O..............................................           60           36           60           36           35
                                                          (2.36)       (1.42)       (2.36)       (1.42)      (1.38) 
    ----------------------------------------------------------------------------------------------------------------
    
        (4) These lines enclose the top of the helmet and are the boundary 
    of the extent of protection. The helmet fails to meet the standard if 
    any point of this line falls below the edge of the helmet. A test line 
    shall be drawn within this extent of protection that is 15 mm (0.59 
    in.) from the closest point on the boundary. The center of the impact 
    sites shall be selected at any point on the helmet on or above the test 
    line.
        (b) For helmets intended for children 4 years of age and under. 
    Prior to testing, the extent of required protection for helmets 
    intended for children 4 years of age and under and tested on the ISO A 
    headform shall be determined for each helmet in the following manner.
        (1) Define an adjusted basic plane on the ISO A reference headform, 
    located 128 mm (5.04 in.) below a plane tangent to the apex of the 
    headform and inclined 15 degrees to the horizontal (see Figure 5).
        (2) Define fore and rear planes, located 58 mm (2.28 in.) and 116 
    mm (4.57 in.) from the front surface of the headform and parallel to 
    the coronal plane.
        (3) Define a point B, located on the fore plane and 54 mm (2.13 
    in.) above the adjusted basic plane. (Dimensions defining the locations 
    of points B, C, D, E, and F are measured perpendicular to the 15 degree 
    incline of the adjusted basic plane).
        (4) Define a point C, located on the fore plane and 31 mm (1.22 
    in.) above the adjusted basic plane.
        (5) Define a point D, located on the rear plane and 31 mm (1.22 
    in.) above the adjusted basic plane.
        (6) Define a point E, located on the rear plane and 8 mm (0.31 in.) 
    above the adjusted basic plane.
        (7) Define a point F, located on the rear surface of the headform 
    and 8 mm (0.31 in.) above the adjusted basic plane.
        (8) Define a horizontal line AB from the front surface of the 
    headform to the fore plane.
        (9) Define the extent of protection by connecting points B, C, D, 
    E, and F.
        (10) Position the helmet on the headform in accordance with the HPI 
    and place a 5-kg (11-lb) preload ballast weight on top of the helmet to 
    set the fit padding.
        (11) Line ABCDEF shall be traced onto the outer surface of the 
    helmet to mark the boundary for the extent of protection. The helmet 
    fails to meet the standard if any point of this line falls below the 
    edge of the helmet. A test line shall be drawn within this extent of 
    protection that is 15 mm (0.59 in.) from the closest point on the 
    boundary. The center of impact sites shall be selected at any point on 
    or above the test line.
    
    
    Sec. 1203.12  Test requirements.
    
        (a) Peripheral vision. The helmet shall allow unobstructed vision 
    through a minimum of 105 deg. to the left and right sides of the 
    midsagittal plane when measured in accordance with Sec. 1203.14 of this 
    standard.
        (b) Positional stability. The helmet shall not release from the 
    test headform when tested in accordance with Sec. 1203.15 of this 
    standard.
        (c) Dynamic strength of retention system. The retention system 
    shall remain intact without elongating more than 30 mm (1.2 in.) when 
    tested in accordance with Sec. 1203.16 of this standard.
        (d) Impact attenuation. (1) The peak acceleration of any impact 
    shall not exceed 300-g when tested in accordance with Sec. 1203.17 of 
    this standard.
        (2) The time duration of the acceleration waveform during any 
    impact shall not exceed 3 ms at or above 200-g and shall not exceed 6 
    ms at or above 150-g, when tested in accordance with Sec. 1203.17.
    
    
    Sec. 1203.13  Test schedule.
    
        (a) One of the five helmets (or two helmets if two headform sizes 
    are appropriate) shall be tested for peripheral vision in accordance 
    with Sec. 1203.14 of this standard.
        (b) Helmet samples 1 through 4 shall be assigned to the ambient, 
    high temperature, low temperature, and water immersion environments, 
    respectively. Helmet 5 shall be assigned to the ambient condition.
        (c) Testing must begin within 2 minutes after removal from the 
    conditioning environment. The helmet shall be returned to the 
    conditioning environment within 3 minutes for a minimum of 2 minutes 
    before testing is resumed. If the helmet is out of the conditioning 
    environment for longer than 3 minutes, it shall be reconditioned for 5 
    minutes for each minute it is out of the conditioning environment 
    beyond the allotted 3 minutes before testing is resumed.
        (d) Helmets shall be tested for dynamic strength of the retention 
    system or for positional stability prior to being tested for impact 
    attenuation. Helmet 1 (conditioned in an ambient environment) shall be 
    tested in accordance with the positional stability tests at 
    Sec. 1203.15. Helmets 2 through 4 (conditioned in the high temperature, 
    low temperature, and water immersion environments) shall be tested in 
    accordance with the dynamic retention system strength test at 
    Sec. 1203.16. Helmets 1 through 4 shall then be tested in accordance 
    with the impact attenuation tests on the flat and hemispherical anvils 
    in accordance with the procedure at Sec. 1203.17. Helmet 5 shall only 
    be used to test for impact attenuation on a curbstone anvil in 
    accordance with Sec. 1203.17 of this standard.
    
    
    Sec. 1203.14  Peripheral vision test.
    
        Position the helmet on the headform in accordance with the HPI and 
    place a 5-kg (11-lb) ballast weight on top of the helmet to set the fit 
    padding.
    
    (Note: Peripheral vision clearance may be determined when the helmet 
    is positioned for marking the extent of protection and test lines.)
    
        Peripheral vision is measured horizontally from each side of the 
    midsagittal plane around the point K (see Figure 6). The vision shall 
    be unobstructed through a minimum of 105 degrees on both sides of the 
    midsagittal plane from point K.
    
    
    Sec. 1203.15  Positional stability test (roll-off resistance).
    
        (a) Test equipment--(1) Headforms. The geometry of the test 
    headforms shall comply with the dimensions of the full chin ISO 
    reference headforms sizes A, E, J, M, and O.
        (2) Test fixture. The headform shall be secured in a test fixture 
    with its vertical axis pointing downward on an axis of 45 degrees to 
    the direction of gravity. The test fixture shall permit rotation of the 
    headform about its vertical axis.
        (3) Dynamic impact apparatus. A dynamic impact apparatus shall be 
    used to apply a ``shock load'' to a helmet secured to a test headform. 
    The dynamic impact apparatus shall allow a 4-kg (8.8-lb) drop weight to 
    slide in a guided free fall to impact a rigid stop anvil. The entire 
    mass of the dynamic impact assembly, including the drop weight, shall 
    be no more than 5 kg (11 lb).
        (4) Strap or cable. A hook and flexible strap or cable shall be 
    used to connect the dynamic impact apparatus to the helmet. The strap 
    or cable shall be of a material having an elongation of no more than 5 
    mm (0.20 in.) per 300 mm (11.8 in.) when loaded with a 22-kg (48.5 lb) 
    weight in a free hanging position. A typical test apparatus is 
    illustrated at Figure 7.
        (b) Test procedure. (1) Orient the headform so that its face is 
    down.
        (2) Place the helmet on the appropriate size full chin headform in 
    accordance with the HPI and fasten the retention system in accordance 
    with the manufacturer's instructions.
        (3) Suspend the dynamic impact system from the helmet by 
    positioning the flexible strap over the helmet along the midsagittal 
    plane and attaching the hook over the edge of the helmet as shown in 
    Figure 7.
        (4) Raise the drop weight to a height of 0.6 m (2 ft) and release, 
    allowing it to impact the stop anvil.
        (5) The test shall be repeated with the headform face pointing 
    upwards, so that the helmet is pulled from front to rear.
    
    
    Sec. 1203.16  Dynamic strength of retention system test.
    
        (a) Test equipment. (1) ISO headforms without the lower chin 
    portion shall be used.
        (2) The retention system strength test equipment shall consist of a 
    dynamic impact apparatus that allows a 4-kg (8.8-lb) drop weight to 
    slide in a guided free fall to impact a rigid stop anvil. Two 
    cylindrical rods with a diameter of 12.5  0.5 mm (0.49 in. 
     0.02 in.) that have a center-to-center distance of 76.0 
     1 mm (3.0  0.04 in.) shall make up a stirrup 
    that represents the bone structure of the lower jaw. The entire dynamic 
    test apparatus hangs freely on the retention system. The entire mass of 
    the support assembly, including drop weight, shall be 6 kg  
    0.5 kg (13.2  1.1 lb). A typical test apparatus is shown in 
    Figure 8.
        (b) Test procedure. (1) Place the helmet on the appropriate size 
    headform on the test device and fasten the strap of the retention 
    system under the stirrup.
        (2) Place a preload ballast of 5 kg (11 lb) on top of the helmet to 
    set the comfort or fit padding.
        (3) Mark the pre-test position with the entire dynamic test 
    apparatus hanging freely on the retention system.
        (4) Raise the 4-kg (8.8-lb) drop weight to a height of 0.6 m (2 ft) 
    and release, allowing it to impact the stop anvil.
        (5) Record the maximum elongation of the retention system during 
    the impact. A marker system or a displacement transducer, as shown in 
    Figure 8, are two methods of measuring the elongation.
    
    
    Sec. 1203.17  Impact attenuation test.
    
        (a) Test instruments and equipment. (1) Measurement of impact 
    attenuation. Impact attenuation is determined by measuring the 
    acceleration of the test headform during impact. Acceleration is 
    measured with a uniaxial accelerometer that is capable of withstanding 
    a shock of a least 1000 g. The helmet is secured onto the headform and 
    dropped in a guided free fall, using a wire- or rail-guided apparatus 
    (see Figure 9), onto an anvil fixed to a rigid base. The base shall 
    consist of a solid mass of at least 135 kg (298 lb), the upper surface 
    of which shall consist of a steel plate at least 25 mm (0.98 in.) thick 
    and having a surface area of at least 0.3 m2 (3.23 ft2).
        (2) Accelerometer. A uniaxial accelerometer is mounted at the 
    center of gravity of the test headform with the sensitive axis aligned 
    within 5 degrees of vertical when the test headform is in the impact 
    position. The acceleration data channel and filtering shall comply with 
    SAE Recommended Practice J211 JUN 80, Instrumentation for Impact Tests, 
    Requirements for Channel Class 1000.
        (3) Headform and drop assembly--centers of gravity. The center of 
    gravity of the test headform is located at the center of the mounting 
    ball on the supporting assembly and lies within a cone with its axis 
    vertical, and forming a 10 degree included angle with the vertex at the 
    point of impact. The center of gravity of the drop assembly lies within 
    the rectangular volume bounded by x = -6.4 mm (-0.25 in.), x = 21.6 mm 
    (0.85 in), y = 6.4 mm (0.25 in.), and y = -6.4 mm (-0.25 in), with the 
    origin located at the center of gravity of the test headform. The 
    rectangular volume has no boundary along the z-axis. The x-y-z axes are 
    mutually perpendicular and have positive or negative designations in 
    accordance with the right-hand rule (see Figure 5 of FMVSS 218). The 
    origin of the coordinate axes also is located at the center of the 
    mounting ball on the supporting assembly (see Figures 6, 7, and 8 of 
    FMVSS 218). The x-y-z axes of the test headform assembly on a monorail 
    drop test equipment are oriented as follows: From the origin, the x-
    axis is horizontal with its positive direction going toward and passing 
    through the vertical centerline of the monorail. The positive z-axis is 
    downward. The y-axis also is horizontal, and its direction can be 
    decided by the z- and x-axes, using the right-hand rule.
        (4) Drop assembly. The mass of the drop assembly (which is the 
    combined mass of the instrumented test headform and support assembly, 
    exclusive of the test helmet) for the drop test shall be 5  
    0.1 kg (11.0  0.22 lb). The mass of the support assembly 
    cannot exceed 25 percent of the mass of the total drop assembly. The 
    mass of the support assembly is the weight of the drop assembly minus 
    the weight of the headform, ball clamp, ball clamp bolts, and 
    accelerometer. The center of gravity of the headform shall be at the 
    center of the mounting ball. The center of gravity of the combined test 
    headform and supporting assembly must meet FMVSS 218 S7.1.8 with any 
    type of guide system.
        (5) Impact anvils. Impact tests shall be performed against three 
    different anvils as described below. All of the anvils shall be 
    constructed of steel and shall be solid (i.e., without internal 
    cavities).
        (i) Flat Anvil. The flat anvil shall have a flat surface area with 
    an impact face having a minimum diameter of 125 mm (4.92 in.) and shall 
    be at least 24 mm (0.94 in.) thick (See Figure 10).
        (ii) Hemispherical anvil. The hemispherical anvil shall have an 
    impact surface with a radius of 48  1 mm (1.89  
    0.04 in.). The profile of the impact surface shall be one half the 
    surface of a sphere (see Figure 11).
        (iii) Curbstone anvil. The curbstone anvil shall have two faces 
    making an angle of 105 degrees and meeting along a striking edge with a 
    radius of 15 mm  0.5 mm (0.59  0.02 in.). The 
    height of the curbstone anvil shall not be less than 50 mm (1.97 in.), 
    and the length shall not be less than 200 mm (7.87 in.) (see Figure 
    12).
        (b) Test Procedure--(1) Instrument system check. The system 
    instrumentation shall be checked before and after each series of tests 
    (at least at the beginning and end of each test day) by dropping the 
    spherical impactor (see Sec. 1203.4(o)) onto the MEP (see 
    Sec. 1203.4(h)) at an impact velocity of 5.44 m/s  2% 
    (17.85 ft/s  2%). Three such impacts, at intervals of 75 
     15 seconds, shall be performed before and after each 
    series of tests. The peak acceleration obtained during these impacts 
    shall be 389  8 g.
        (2) Impact sites. Each of helmets 1 through 4 (one helmet for each 
    conditioning environment) shall be impacted at four different sites, 
    two impacts on the flat anvil and two impacts on the hemispherical 
    anvil. The fifth helmet shall be impacted once on the curbstone anvil 
    at ambient condition. The center of impact may be on or anywhere above 
    the test line and at least one fifth of the maximum circumference of 
    the helmet from any prior impact center. Rivets and other mechanical 
    fasteners, vents, and any other helmet feature within the test region 
    shall be valid test sites.
        (3) Impact velocity. The helmet shall be dropped onto the flat 
    anvil from a theoretical drop height of 2 meters (6.56 ft) to achieve 
    an impact velocity of 6.2 m/s  2% (20.34 ft/s  
    2%). The helmet shall be dropped onto the hemispherical and curbstone 
    anvils from a theoretical drop height of 1.2 meters (3.94 ft) to 
    achieve an impact velocity of 4.8 m/s  2% (15.75 ft/s 
     2%). The impact velocity shall be measured during the last 
    40 mm (1.57 in) of free-fall for each test.
        (4) Helmet position. Prior to each test, position the helmet on the 
    test headform in accordance with the HPI. The helmet shall be secured 
    so that it does not shift position prior to impact. The helmet 
    retention system shall be secured in a manner that does not interfere 
    with free-fall or impact.
        (5) Data. Record the maximum acceleration in g's during impact and 
    the time duration that the acceleration is at or above the 200-g and 
    150-g levels on the acceleration waveform.
    
    Subpart B--Certification
    
    
    Sec. 1203.30  Purpose and scope.
    
        (a) Purpose. Section 14(a) of the Consumer Product Safety Act 
    (CPSA), 15 U.S.C. 2063(a), requires every manufacturer (including 
    importers) and private labeler of a product which is subject to a 
    consumer product safety standard to issue a certificate that the 
    product conforms to the applicable standard, and to base that 
    certificate either on a test of each product or on a ``reasonable 
    testing program.'' The purpose of this subpart is to establish 
    requirements that manufacturers and importers of bicycle helmets 
    subject to the Safety Standard for Bicycle Helmets (Subpart A of this 
    Part 1203), shall issue certificates of compliance in the form 
    specified.
        (b) Scope. The provisions of this subpart apply to all bicycle 
    helmets that are subject to the requirements of the Safety Standard for 
    Bicycle Helmets.
    
    
    Sec. 1203.31  Effective date.
    
        Any bicycle helmet manufactured more than 1 year after publication 
    of a final rule must meet the standard and must be certified as 
    complying with the standard in accordance with this rule.
    
    
    Sec. 1203.32  Definitions.
    
        The following definitions shall apply to this subpart:
        (a) Manufacturer means the manufacturer of a helmet manufactured in 
    the United States and the importer of helmets manufactured outside the 
    United States.
        (b) Private labeler means an owner of a brand or trademark which is 
    used on a bicycle helmet subject to the standard and which is not the 
    brand or trademark of the manufacturer of the bicycle helmet, provided 
    the owner of the brand or trademark caused or authorized the bicycle 
    helmet to be so labeled and the brand or trademark of the manufacturer 
    of such bicycle helmet does not appear on the label.
        (c) Production lot means a quantity of bicycle helmets from which 
    certain bicycle helmets are selected for testing prior to certifying 
    the lot. All bicycle helmets in a lot must be essentially identical in 
    those design, construction, and material features which relate to the 
    ability of a bicycle helmet to comply with the standard.
        (d) Reasonable testing program means any tests which are identical 
    or equivalent to, or more stringent than, the tests defined in the 
    standard and which are performed on one or more bicycle helmets within 
    the production lot for the purpose of determining whether there is 
    reasonable assurance that all of the bicycle helmets in that lot comply 
    with the requirements of the standard.
    
    
    Sec. 1203.33  Certification testing.
    
        (a) General. U.S. manufacturers and importers shall conduct a 
    reasonable testing program to demonstrate that their bicycle helmets 
    comply with the requirements of the standard.
        (b) Reasonable testing program. This paragraph provides guidance 
    for establishing a reasonable testing program.
        (1) A reasonable testing program for bicycle helmets is one that 
    provides reasonable assurance that all bicycle helmets manufactured or 
    imported comply with the standard. Manufacturers and importers may 
    define their own testing programs. Such reasonable testing programs 
    may, at the option of manufacturers and importers, be conducted by an 
    independent third party qualified to perform such testing programs. 
    However, all testing programs must be reasonable, and the manufacturers 
    and importers are responsible for insuring compliance with all 
    requirements of this standard.
        (2) To conduct a reasonable testing program, the bicycle helmets 
    shall be divided into production lots. Sample bicycle helmets from each 
    production lot shall be tested in accordance with the reasonable 
    testing program to provide a reasonable assurance that if the bicycle 
    helmets selected for testing meet the standard, all bicycle helmets in 
    the lot will meet the standard. Whenever there is a change in parts, 
    suppliers of parts, or production methods that could affect the ability 
    of the bicycle helmet to comply with the requirements of the standard, 
    the manufacturer shall establish a new production lot for testing.
        (3) The Commission will test for compliance with the standard by 
    using the standard's test procedures. However, a reasonable testing 
    program may include either the tests prescribed in the standard or any 
    other reasonable test procedures that assure compliance with the 
    standard.
        (4) If the reasonable testing program shows that a bicycle helmet 
    may not comply with one or more requirements of the standard, no 
    bicycle helmet in the production lot can be certified as complying 
    until all noncomplying bicycle helmets in the lot have been identified 
    and destroyed or altered by repair, redesign, or use of a different 
    material or components to the extent necessary to make them conform to 
    the standard. The sale or offering for sale of bicycle helmets that do 
    not comply with the standard is a prohibited act and a violation of 
    section 19(a) of the CPSA (15 U.S.C. 2068(a)), regardless of whether 
    the bicycle helmet has been validly certified.
    
    
    Sec. 1203.34  Product certification and labeling by manufacturers 
    (including importers).
    
        (a) Form of permanent label of certification. Manufacturers, as 
    defined in Sec. 1203.32(a), which includes importers, shall issue 
    certificates of compliance for bicycle helmets manufactured after the 
    effective date of the standard in the form of a permanent label which 
    can reasonably be expected to remain on the bicycle helmet during the 
    entire period the bicycle helmet is capable of being used. Such 
    labeling shall be deemed to be a ``certificate'' of compliance as that 
    term is used in section 14 of the CPSA, 15 U.S.C. 2063.
        (b) Contents of certification label. The certification labels 
    required by this section shall clearly and legibly contain the 
    following information:
        (1) The statement ``Complies with CPSC Safety Standard for Bicycle 
    Helmets (16 CFR part 1203)'',
        (2) The name of the U.S. manufacturer or importer responsible for 
    issuing the certificate,
        (3) The address of the U.S. manufacturer or importer responsible 
    for issuing the certificate or, if the name of a private labeler is on 
    the label, the address of the private labeler,
        (4) The name and address of the foreign manufacturer, if the helmet 
    was manufactured outside the United States,
        (5) An identification of the production lot, and
        (6) The month and year the product was manufactured.
        (c) Coding. The information required by paragraphs (b)(4) through 
    (6) of this section may be in code, provided the person or firm issuing 
    the certificate maintains a written record of the meaning of each 
    symbol used in the code, which record shall be made available to the 
    distributor, retailer, consumer, and Commission upon request. If a 
    bicycle helmet is manufactured for sale by a private labeler, and if 
    the name of the private labeler is on the certification label, the name 
    of the manufacturer or importer issuing the certificate, and the name 
    and address of any foreign manufacturer, may also be in such a code.
        (d) Placement of the label. The label required by this section must 
    be affixed to the bicycle helmet. If the label is not immediately 
    visible to the ultimate purchaser of the bicycle helmet prior to 
    purchase because of packaging or other marketing practices, a second 
    label that states: ``Complies with CPSC Safety Standard for Bicycle 
    Helmets'' must appear on the container or, if the container is not 
    visible before purchase, on the promotional material used with the sale 
    of the bicycle helmet.
        (e) Additional provisions for importers--(1) General. The importer 
    of any bicycle helmet subject to the standard in subpart A of this Part 
    1203 must issue the certificate of compliance required by section 14(a) 
    of the CPSA and Sec. 1203.34 of this subpart. If a reasonable testing 
    program meeting the requirements of this subpart has been performed by 
    or for the foreign manufacturer of the product, the importer may rely 
    in good faith on such tests to support the certificate of compliance 
    provided:
        (i) The importer is a resident of the United States or has a 
    resident agent in the United States,
        (ii) The records of such tests required by Sec. 1203.41 of subpart 
    C of this part are maintained in the United States, and
        (iii) Such records are available to the Commission upon a request 
    to the importer.
        (2) Responsibility of importer. If the importer relies on tests by 
    the foreign manufacturer to support the certificate of compliance, the 
    importer shall examine the records supplied by the manufacturer to 
    determine that the records of such tests appear to comply with 
    Sec. 1203.41 of subpart C of this part.
    
    Subpart C--Recordkeeping
    
    
    Sec. 1203.40  Effective date.
    
        The recordkeeping requirements in this subpart are effective 
    [insert date that is 1 year after publication of the final rule] and 
    apply to bicycle helmets manufactured on or after that date.
    
    
    Sec. 1203.41  Recordkeeping requirements.
    
        (a) General. Every person issuing certificates of compliance for 
    bicycle helmets subject to the standard in subpart A of this part shall 
    maintain written records which show that the certificates are based on 
    a reasonable testing program. The records shall be maintained for a 
    period of at least 3 years from the date of certification of the last 
    bicycle helmet in each production lot. These records shall be available 
    to any designated officer or employee of the Commission upon request in 
    accordance with section 16(b) of the CPSA, 15 U.S.C. 2065(b).
        (b) Contents of records. Complete test records shall be maintained. 
    Records shall identify the bicycle helmets tested, the production lot, 
    and the results of the tests, including the precise nature of any 
    failures, and specific actions taken to address any failures. An 
    original paper copy of the test records must be kept by the test 
    laboratory, on paper, with the signature of the technician who 
    performed the test. The test records shall describe in detail the tests 
    that the bicycle helmets have been subjected to, and shall include:
        1. Manufacturer's name and address.
        2. Model and size of each helmet tested.
        3. Identifying information for each helmet tested, including the 
    production lot for each helmet, and the environmental condition under 
    which each helmet was tested.
        4. Temperatures in each conditioning environment, and the relative 
    humidity and temperature of the laboratory.
        5. Parameters and results of the test for peripheral vision 
    clearance.
        6. Failures to conform to any of the labeling and instruction 
    requirements.
        7. Performance impact results in sequence stating the location of 
    impact, type of anvil used, velocity prior to impact, maximum 
    acceleration, and time durations that the acceleration is at or above 
    the 200-g and 150-g levels.
        8. Parameters and results of the positional stability test.
        9. Parameters and results of the dynamic strength of retention 
    system test.
        10. Name and location of the test laboratory.
        11. Signature of the technician who performed the test.
        12. Date of the test.
        13. Calibration test results.
        (c) Format for records. The records required to be maintained by 
    this section may be in any appropriate form or format that clearly 
    provides the required information.
    
    Appendix to Part 1203--Figures
    
    BILLING CODE 6355-01-M
    
    TP15AU94.001
    
    
    TP15AU94.002
    
    
    TP15AU94.003
    
    
    TP15AU94.004
    
    
    TP15AU94.005
    
    
    TP15AU94.006
    
    
    TP15AU94.007
    
    
    TP15AU94.008
    
    
    TP15AU94.009
    
    
    TP15AU94.010
    
    BILLING CODE 6355-01-C
        Dated: August 9, 1994.
    Sadye E. Dunn,
    Secretary, Consumer Product Safety Commission
    [FR Doc. 94-19787 Filed 8-12-94; 8:45 am]
    BILLING CODE 6355-01-P
    
    
    

Document Information

Published:
08/15/1994
Department:
Consumer Product Safety Commission
Entry Type:
Uncategorized Document
Action:
Proposed rule.
Document Number:
94-19787
Dates:
Comments on the proposal should be submitted no later than October 31, 1994.
Pages:
0-0 (1 pages)
Docket Numbers:
Federal Register: August 15, 1994
CFR: (29)
16 CFR 14(a)
16 CFR 1203.4(h))
16 CFR 0.1
16 CFR 0.04
16 CFR 0.5
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