00-735. Emamectin Benzoate; Pesticide Tolerances for Emergency Exemptions  

  • [Federal Register Volume 65, Number 8 (Wednesday, January 12, 2000)]
    [Rules and Regulations]
    [Pages 1796-1802]
    From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
    [FR Doc No: 00-735]
    
    
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    ENVIRONMENTAL PROTECTION AGENCY
    
    40 CFR Part 180
    
    [OPP-300958; FRL-6398-5]
    RIN 2070-AB78
    
    
    Emamectin Benzoate; Pesticide Tolerances for Emergency Exemptions
    
    AGENCY: Environmental Protection Agency (EPA).
    
    ACTION: Final rule.
    
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    SUMMARY: This regulation establishes time-limited tolerances for 
    combined residues of emamectin benzoate and its metabolites and 
    photodegradates emamectin benzoate, 4'-epi-methylamino- 4'-
    deoxyavermectin B1 benzoate (a mixture of a minimum of 90% 
    4'-epi-methylamino-4'- deoxyavermectin B1a and a maximum of 
    10% 4'-epi-methlyamino-4'deoxyavermectin B1b benzoate) and 
    its metabolites 8,9 isomer of the B1a and B1b 
    component of the parent insecticide (8,9 ZMA); 4'-deoxy-4'-epi-
    aminoavermectin B1 (AB1a); 4'deoxy-4'-epi-(N-
    formyl-N-methyl)amino-avermectin (MFB1a); and 4'-deoxy-4'-
    epi-(N-formyl)amino-avermectin B1(FAB1a) (CAS 
    No.137512-74-4), in or on cottonseed, cottonseed oil, cotton meal, 
    hulls, and gin trash; and the milk, meat, fat, kidney, and liver of 
    cattle, goats, sheep, and swine. This action is in response to EPA's 
    granting of an emergency exemption under section 18 of the Federal 
    Insecticide, Fungicide, and Rodenticide Act authorizing use of the 
    pesticide on cotton. This regulation establishes maximum permissible 
    levels for residues of emamectin benzoate in these food and feed 
    commodities. The tolerances will expire and are revoked on December 31, 
    2001.
    
    DATES: This regulation is effective January 12, 2000. Objections and 
    requests
    
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    for hearings, identified by docket control number OPP-300958, must be 
    received by EPA on or before March 13, 2000.
    
    ADDRESSES: Written objections and hearing requests may be submitted by 
    mail, in person, or by courier. Please follow the detailed instructions 
    for each method as provided in Unit VII. of the ``SUPPLEMENTARY 
    INFORMATION.'' To ensure proper receipt by EPA, your objections and 
    hearing requests must identify docket control number OPP-300958 in the 
    subject line on the first page of your response.
    
    FOR FURTHER INFORMATION CONTACT: By mail: Andrea Beard, Registration 
    Division (7505C), Office of Pesticide Programs, Environmental 
    Protection Agency, 401 M St., SW., Washington, DC 20460; telephone 
    number: (703) 308-9356; and e-mail address: beard.andrea@epa.gov.
    
    SUPPLEMENTARY INFORMATION:
    
    I. General Information
    
    A. Does this Action Apply to Me?
    
        You may be potentially affected by this action if you are an 
    agricultural producer, food manufacturer, or pesticide manufacturer. 
    Potentially affected categories and entities may include, but are not 
    limited to:
    
    
     
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                                                              Examples of
               Categories                 NAICS codes         potentially
                                                          affected  entities
    ------------------------------------------------------------------------
    Industry                          111                 Crop production
                                      112                 Animal production
                                      311                 Food manufacturing
                                      32532               Pesticide
                                                           manufacturing
    ------------------------------------------------------------------------
    
    
        This listing is not intended to be exhaustive, but rather provides 
    a guide for readers regarding entities likely to be affected by this 
    action. Other types of entities not listed in the table could also be 
    affected. The North American Industrial Classification System (NAICS) 
    codes have been provided to assist you and others in determining 
    whether or not this action might apply to certain entities. If you have 
    questions regarding the applicability of this action to a particular 
    entity, consult the person listed under `` FOR FURTHER INFORMATION 
    CONTACT.''
    
    B. How Can I Get Additional Information, Including Copies of This 
    Document and Other Related Documents?
    
        1. Electronically. You may obtain electronic copies of this 
    document, and certain other related documents that might be available 
    electronically, from the EPA Internet Home Page at http://www.epa.gov/. 
    To access this document, on the Home Page select ``Laws and 
    Regulations'' and then look up the entry for this document under the 
    ``Federal Register-Environmental Documents.'' You can also go directly 
    to the Federal Register listings at http://www.epa.gov/fedrgstr/.
        2. In person. The Agency has established an official record for 
    this action under docket control number OPP-300958. The official record 
    consists of the documents specifically referenced in this action, and 
    other information related to this action, including any information 
    claimed as Confidential Business Information (CBI). This official 
    record includes the documents that are physically located in the 
    docket, as well as the documents that are referenced in those 
    documents. The public version of the official record does not include 
    any information claimed as CBI. The public version of the official 
    record, which includes printed, paper versions of any electronic 
    comments submitted during an applicable comment period is available for 
    inspection in the Public Information and Records Integrity Branch 
    (PIRIB), Rm. 119, Crystal Mall #2, 1921 Jefferson Davis Hwy., 
    Arlington, VA, from 8:30 a.m. to 4 p.m., Monday through Friday, 
    excluding legal holidays. The PIRIB telephone number is (703) 305-5805.
    
    II. Background and Statutory Findings
    
        EPA, on its own initiative, in accordance with sections 408(l)(6) 
    of the Federal Food, Drug, and Cosmetic Act (FFDCA), 21 U.S.C. 346a, is 
    establishing tolerances for combined residues of the insecticide 
    emamectin benzoate, in or on cottonseed at 0.002 part per million 
    (ppm), cottonseed oil at 0.006 ppm, cotton meal at 0.002 ppm, cotton 
    hulls at 0.004 ppm, and cotton gin trash at 0.025 ppm; and the milk, 
    meat, fat, kidney, and liver of cattle, goats, sheep, and swine at 
    0.002 ppm. These tolerances will expire and are revoked on December 31, 
    2001. EPA will publish a document in the Federal Register to remove the 
    revoked tolerances from the Code of Federal Regulations.
        Section 408(l)(6) of the FFDCA requires EPA to establish a time-
    limited tolerance or exemption from the requirement for a tolerance for 
    pesticide chemical residues in food that will result from the use of a 
    pesticide under an emergency exemption granted by EPA under section 18 
    of FIFRA. Such tolerances can be established without providing notice 
    or period for public comment. EPA does not intend for its actions on 
    section 18 related tolerances to set binding precedents for the 
    application of section 408 and the new safety standard to other 
    tolerances and exemptions.
        Section 408(b)(2)(A)(i) of the FFDCA allows EPA to establish a 
    tolerance (the legal limit for a pesticide chemical residue in or on a 
    food) only if EPA determines that the tolerance is ``safe.'' Section 
    408(b)(2)(A)(ii) defines ``safe'' to mean that ``there is a reasonable 
    certainty that no harm will result from aggregate exposure to the 
    pesticide chemical residue, including all anticipated dietary exposures 
    and all other exposures for which there is reliable information.'' This 
    includes exposure through drinking water and in residential settings, 
    but does not include occupational exposure. Section 408(b)(2)(C) 
    requires EPA to give special consideration to exposure of infants and 
    children to the pesticide chemical residue in establishing a tolerance 
    and to ``ensure that there is a reasonable certainty that no harm will 
    result to infants and children from aggregate exposure to the pesticide 
    chemical residue. . . .''
        Section 18 of the Federal Insecticide, Fungicide, and Rodenticide 
    Act (FIFRA) authorizes EPA to exempt any Federal or State agency from 
    any provision of FIFRA, if EPA determines that ``emergency conditions 
    exist which require such exemption.'' This provision was not amended by 
    the Food Quality Protection Act (FQPA). EPA has established regulations 
    governing such emergency exemptions in 40 CFR part 166.
    
    III. Emergency Exemption for Emamectin Benzoate on Cotton and FFDCA 
    Tolerances
    
        Beet armyworm has infested cotton fields to a high degree in recent 
    growing seasons. This pest had not previously been a significant pest 
    in cotton, and had been controlled with available alternatives. 
    However, in recent years, beet armyworm populations have reached 
    devastating levels in southeastern cotton-growing areas, and registered 
    alternatives have proven to provide inadequate control to prevent 
    significant economic losses from occurring. The resistant tobacco 
    budworm is also negatively affecting yields in these states. EPA has 
    reviewed the submissions and has concluded that these pest situations 
    represent urgent and non-routine problems. EPA has authorized under 
    FIFRA section 18 the use of emamectin benzoate on cotton for control of 
    beet armyworm and resistant tobacco budworm in Alabama, Arkansas, 
    Louisiana, Mississippi, Oklahoma, and Texas. After having
    
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    reviewed the submissions, EPA concurs that emergency conditions exist 
    for these States.
        As part of its assessment of this emergency exemption, EPA assessed 
    the potential risks presented by residues of emamectin benzoate in or 
    on cotton commodities. In doing so, EPA considered the safety standard 
    in FFDCA section 408(b)(2), and EPA decided that the necessary 
    tolerances under FFDCA section 408(l)(6) would be consistent with the 
    safety standard and with FIFRA section 18. Consistent with the need to 
    move quickly on the emergency exemption in order to address an urgent 
    non-routine situation and to ensure that the resulting food is safe and 
    lawful, EPA is issuing these tolerances without notice and opportunity 
    for public comment as provided in section 408(l)(6). Although these 
    tolerances will expire and are revoked on December 31, 2000, under 
    FFDCA section 408(l)(5), residues of the pesticide not in excess of the 
    amounts specified in the tolerances remaining in or on cotton 
    commodities after that date will not be unlawful, provided the 
    pesticide is applied in a manner that was lawful under FIFRA, and the 
    residues do not exceed a level that was authorized by the tolerances at 
    the time of that application. EPA will take action to revoke these 
    tolerances earlier if any experience with, scientific data on, or other 
    relevant information on this pesticide indicate that the residues are 
    not safe.
        Because these tolerances are being approved under emergency 
    conditions, EPA has not made any decisions about whether emamectin 
    benzoate meets EPA's registration requirements for use on cotton or 
    whether permanent tolerances for this use would be appropriate. Under 
    these circumstances, EPA does not believe that these tolerances serve 
    as a basis for registration of emamectin benzoate by a State for 
    special local needs under FIFRA section 24(c). Nor do these tolerances 
    serve as the basis for any State other than Alabama, Arkansas, 
    Louisiana, Mississippi, Oklahoma, and Texas to use this pesticide on 
    this crop under section 18 of FIFRA without following all provisions of 
    EPA's regulations implementing section 18 as identified in 40 CFR part 
    166. For additional information regarding the emergency exemptions for 
    emamectin benzoate, contact the Agency's Registration Division at the 
    address provided under `` FOR FURTHER INFORMATION CONTACT.''
    
    IV. Aggregate Risk Assessment and Determination of Safety
    
        EPA performs a number of analyses to determine the risks from 
    aggregate exposure to pesticide residues. For further discussion of the 
    regulatory requirements of section 408 and a complete description of 
    the risk assessment process, see the final rule on Bifenthrin Pesticide 
    Tolerances (62 FR 62961, November 26, 1997) (FRL-5754-7).
        Consistent with section 408(b)(2)(D), EPA has reviewed the 
    available scientific data and other relevant information in support of 
    this action. EPA has sufficient data to assess the hazards of emamectin 
    benzoate and to make a determination on aggregate exposure, consistent 
    with section 408(b)(2), for time-limited tolerances for combined 
    residues of emamectin benzoate and its metabolites and photodegradates 
    on cottonseed at 0.002 ppm, cottonseed oil at 0.0006 ppm, cotton meal 
    at 0.002 ppm, cotton hulls at 0.004 ppm, and cotton gin trash at 0.025 
    ppm; and the milk, meat, fat, kidney, and liver of cattle, goats, 
    sheep, and swine at 0.002 ppm. EPA's assessment of the dietary 
    exposures and risks associated with establishing the tolerances 
    follows.
    
    A. Toxicological Profile
    
        EPA has evaluated the available toxicity data and considered its 
    validity, completeness, and reliability as well as the relationship of 
    the results of the studies to human risk. EPA has also considered 
    available information concerning the variability of the sensitivities 
    of major identifiable subgroups of consumers, including infants and 
    children. The nature of the toxic effects caused by emamectin benzoate 
    are discussed in Unit II.A. of the final rule on Emamectin Benzoate 
    Pesticide Tolerances published in the Federal Register on May 19, 1999 
    (64 FR 27192) (FRL-6079-7).
    
    B. Toxicological Endpoint
    
        The toxicological endpoints for emamectin benzoate are discussed in 
    Unit II.B. of the final rule on Emamectin Benzoate Pesticide Tolerances 
    published in the Federal Register on May 19, 1999.
    
    C. Exposures and Risks
    
        1. From food and feed uses. Tolerances have been established (40 
    CFR 180.505) for the combined residues of emamectin benzoate and its 
    metabolites and photodegradates, in or on Brassica, head and stem 
    (subgroup 5-A under 40 CFR 180.41), celery, and head lettuce. Risk 
    assessments were conducted by EPA to assess dietary exposures and risks 
    from emamectin benzoate as follows:
        i. Acute exposure and risk. Acute dietary risk assessments are 
    performed for a food-use pesticide if a toxicological study has 
    indicated the possibility of an effect of concern occurring as a result 
    of a 1-day or single exposure. For conducting the acute dietary risk 
    assessment, the population subgroups of concern are infants, children, 
    and females 13 years and older. An acute dietary risk assessment was 
    performed using the Dietary Exposure Evaluation Model (DEEM) system, 
    Tier 3 (Monte Carlo) approach. This methodology incorporates 
    distributions of residues and refined percent of crop treated (PCT) 
    estimates for some crops and thus results in refined risk estimates. 
    This exposure analysis was conducted using the Acute Population-
    Adjusted Dose (PAD) of 0.00025 milligrams/kilograms/day (mg/kg/day). 
    The analysis evaluated individual food consumption as reported in the 
    USDA Continuing Surveys of Food Intake by Individuals (CSFII) conducted 
    in 1989-92. The model accumulated exposure to emamectin for each 
    commodity and expresses risk as a function of dietary exposure. For the 
    most highly exposed population subgroup, children 1-6 years old, the 
    resulting high-end exposure (at the 99.9th percentile) occupies 65% of 
    the acute PAD. For the overall U.S. population, the high-end exposure 
    (99.9th percentile) occupies 29% of the acute PAD. All risk estimates 
    are within acceptable limits, thus there is reasonable certainty of no 
    harm due to acute dietary exposure to emamectin.
        ii. Chronic exposure and risk. The chronic dietary risk assessment 
    used the chronic PAD of 0.000083 mg/kg/day, and consumption reported in 
    the USDA-CSFII of 1989-92, and accumulates exposure to emamectin for 
    each commodity. This analysis used tolerance-level residues and 25% 
    crop treated figures for broccoli, Brussels sprouts, cabbage, 
    cauliflower, lettuce, and celery. For the most highly exposed 
    population subgroup, children 1-6 years old, the resulting exposure 
    occupies 21% of the chronic PAD. For the overall U.S. population, the 
    exposure occupies 15% of the chronic PAD. All risk estimates are within 
    acceptable limits, thus there is reasonable certainty of no harm due to 
    chronic dietary exposure to emamectin.
        Section 408(b)(2)(F) states that the Agency may use data on the 
    actual PCT for assessing chronic dietary risk only if the Agency can 
    make the following findings: That the data used are reliable and 
    provide a valid basis to show what
    
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    percentage of the food derived from such crop is likely to contain such 
    pesticide residue; that the exposure estimate does not underestimate 
    exposure for any significant subpopulation group; and if data are 
    available on pesticide use and food consumption in a particular area, 
    the exposure estimate does not understate exposure for the population 
    in such area. In addition, the Agency must provide for periodic 
    evaluation of any estimates used. To provide for the periodic 
    evaluation of the estimate of PCT as required by section 408(b)(2)(F), 
    EPA may require registrants to submit data on PCT.
        The Agency used PCT figures of: 25% for broccoli, Brussels sprouts, 
    cabbage, cauliflower, lettuce, and celery.
        The Agency believes that the three conditions in section 
    408(b)(2)(F), discussed in this unit, concerning the Agency's 
    responsibilities in assessing chronic dietary risk findings, have been 
    met. The PCT estimates are derived from Federal and private market 
    survey data, which are reliable and have a valid basis. Typically, a 
    range of estimates are supplied and the upper end of this range is 
    assumed for the exposure assessment. By using this upper end estimate 
    of the PCT, the Agency is reasonably certain that the percentage of the 
    food treated is not likely to be underestimated. The regional 
    consumption information and consumption information for significant 
    subpopulations is taken into account through EPA's computer-based model 
    for evaluating the exposure of significant subpopulations including 
    several regional groups. Use of this consumption information in EPA's 
    risk assessment process ensures that EPA's exposure estimate does not 
    understate exposure for any significant subpopulation group and allows 
    the Agency to be reasonably certain that no regional population is 
    exposed to residue levels higher than those estimated by the Agency. 
    Other than the data available through national food consumption 
    surveys, EPA does not have available information on the regional 
    consumption of food to which emamectin benzoate may be applied in a 
    particular area.
        2. From drinking water. There are no established Maximum 
    Contaminant Levels (MCLs) of health advisory levels for residues of 
    emamectin in drinking water. The Agency currently lacks sufficient 
    water-related exposure data to complete a comprehensive drinking water 
    exposure analysis and risk assessment for emamectin. Because the Agency 
    does not have comprehensive and reliable monitoring data, drinking 
    water concentration estimates must be made by reliance on some sort of 
    simulation or modeling. None of the drinking water models used by the 
    Agency include consideration of the impact that processing of raw 
    water, for distribution as drinking water, would likely have on the 
    removal of pesticides from the source water. The primary use of these 
    models by the Agency at this stage is to provide a coarse screen for 
    sorting out pesticides for which it is highly unlikely that drinking 
    water concentrations would ever exceed human health levels of concern.
        In the environment, emamectin and its primary degradates are 
    expected to be relatively immobile due to the high degree of sorption 
    to soil particles. Estimated concentrations for surface water exceeded 
    those for ground water; therefore, surface water values were used for 
    risk calculations. The estimated environmental concentration (EEC) for 
    acute drinking water exposure is 0.107 part per billion (ppb), derived 
    from the PRZM/EXAMS model which estimates pesticide concentrations in a 
    farm pond. The highest EEC for chronic drinking water exposure is 
    0.0203 ppb from the PRZM/EXAMS model. These drinking water estimates 
    are considered to include both emamectin and its metabolites of 
    concern.
        In the absence of monitoring data for pesticides, drinking water 
    levels of comparison (DWLOCs) are calculated and compared to the model 
    estimates of a pesticide's concentration in water. DWLOCs are 
    theoretical upper limits for a pesticide's concentration in drinking 
    water in light of total aggregate exposure to a pesticide in food, 
    drinking water, and residential uses. A DWLOC will vary depending on 
    the toxic endpoint, with drinking water consumption, and body weights. 
    Different populations will have different DWLOCs. DWLOCs are used in 
    the risk assessment process as a surrogate measure of potential 
    exposure associated with pesticide exposure through drinking water. 
    DWLOC values are not regulatory standards for drinking water. The 
    estimates for drinking water levels, derived from the models mentioned 
    in the preceding paragraph, are all well below the DWLOCs calculated 
    for all population subgroups. Since DWLOCs address total aggregate 
    exposure to emamectin they are further discussed in the aggregate risk 
    sections below.
        3. From non-dietary exposure. Emamectin benzoate is currently not 
    registered for use on any residential non-food sites. The proposed and 
    existing uses of emamectin are not expected to result in residential 
    exposure. Therefore, a non-dietary risk assessment was not conducted.
        4. Cumulative exposure to substances with a common mechanism of 
    toxicity. Section 408(b)(2)(D)(v) requires that, when considering 
    whether to establish, modify, or revoke a tolerance, the Agency 
    consider ``available information'' concerning the cumulative effects of 
    a particular pesticide's residues and ``other substances that have a 
    common mechanism of toxicity.''
        Emamectin benzoate is synthetically derived from avermectin, which 
    is derived from the antibiotic-producing actinomycetes, the source of 
    all of the antibiotic fungicides. Streptomyces avermitilus produces the 
    insecticide avermectin, which is a mixture of two homologs, avermectin 
    B1a and B1b, which have equal biological 
    activity. Currently, the only member of this class which is registered 
    for agricultural uses is avermectin. Avermectin and ivermectin are 
    structurally similar to emamectin. EPA does not have, at this time, 
    available data to determine whether emamectin benzoate has a common 
    mechanism of toxicity with other substances or how to include this 
    pesticide in a cumulative risk assessment. Unlike other pesticides for 
    which EPA has followed a cumulative risk approach based on a common 
    mechanism of toxicity, emamectin benzoate does not appear to produce a 
    toxic metabolite produced by other substances. For the purposes of this 
    tolerance action, therefore, EPA has not assumed that emamectin 
    benzoate has a common mechanism of toxicity with other substances. For 
    more information regarding EPA's efforts to determine which chemicals 
    have a common mechanism of toxicity and to evaluate the cumulative 
    effects of such chemicals, see the final rule for Bifenthrin Pesticide 
    Tolerances (62 FR 62961, November 26, 1997).
    
    D. Aggregate Risks and Determination of Safety for U.S. Population
    
        1. Acute risk. There are currently no registered residential uses 
    of emamectin or uses which may result in residential exposure. 
    Therefore, acute aggregate risk consists of exposure from food and 
    drinking water sources only. As discussed earlier, exposure to 
    emamectin residues in food will occupy no more than 29% of the acute 
    PAD for adult population subgroups, and no more than 65% of the acute 
    PAD for infant/children subgroups. Estimated concentrations of 
    emamectin residues in surface and ground water are lower than the 
    DWLOCs calculated by the Agency. The drinking water estimates were 
    calculated using drinking water models,
    
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    and are considered conservative. Therefore, EPA does not expect chronic 
    aggregate risk to emamectin residues from food and water sources to 
    exceed levels of concern for acute aggregate risk, and thus finds 
    reasonable certainty that no harm will result from aggregate acute 
    exposure to emamectin.
        2. Chronic risk. Using the exposure assumptions described in this 
    unit, EPA has concluded that aggregate exposure to emamectin benzoate 
    from food will utilize 15% of the chronic PAD for the U.S. population. 
    The major identifiable subgroup with the highest aggregate exposure is 
    children 1 to 6 years old, at 21% of the chronic PAD. This is discussed 
    below. EPA generally has no concern for exposures below 100% of the PAD 
    because the PAD represents the level at or below which daily aggregate 
    dietary exposure over a lifetime will not pose appreciable risks to 
    human health. As stated above, the estimated drinking water levels, 
    calculated using EPA models, and thus considered conservative, were 
    lower than all DWLOCs. Thus, despite the potential for exposure to 
    emamectin benzoate in drinking water, EPA does not expect the aggregate 
    exposure to exceed 100% of the chronic PAD, and thus concludes that 
    there is reasonable certainty that no harm will result from chronic 
    aggregate exposure to emamectin.
        3. Short- and intermediate-term risk. Short- and intermediate-term 
    aggregate exposure takes into account chronic dietary food and water 
    (considered to be a background exposure level) plus indoor and outdoor 
    residential exposure. Since there are no registered residential uses or 
    other uses that would be expected to result in residential exposure, 
    there is no exposure expected in these scenarios, and thus this risk 
    assessment is not necessary.
        4. Aggregate cancer risk for U.S. population. Based on the 
    available data available for emamectin, there is no evidence of 
    carcinogenicity, and thus this risk assessment is not necessary.
        5. Determination of safety. Based on these risk assessments, EPA 
    concludes that there is a reasonable certainty that no harm will result 
    from aggregate exposure to emamectin benzoate residues.
    
    E. Aggregate Risks and Determination of Safety for Infants and Children
    
        1. Safety factor for infants and children--i. In general. The 
    determination of the 3X safety factor to account for the potential for 
    increased sensitivity of infants and children to residues of 
    imidacloprid is discussed in Unit II.E.1.i. of the final rule on 
    Emamectin Benzoate Pesticide Tolerances published in the Federal 
    Register on May 19, 1999.
        ii. Developmental toxicity studies. Developmental toxicity is 
    discussed in Units II.A.8. and II.A.16. and II.E.1. of the Federal 
    Register document published on May 19, 1999.
        iii. Reproductive toxicity study. Reproductive toxicity is 
    discussed in Units II.A.10. and II.E.1. of the Federal Register 
    document published on May 19, 1999.
        iv. Prenatal and postnatal sensitivity. Prenatal and postnatal 
    sensitivity is discussed in Unit II.E.1. of the Federal Register 
    document published on May 19, 1999.
        v. Conclusion. There is a complete toxicity data base for emamectin 
    benzoate and exposure data are complete or are estimated based on data 
    that reasonably accounts for potential exposures.
        2. Acute risk. Using the exposure assumptions described in this 
    unit, EPA has concluded that aggregate exposure to emamectin benzoate 
    from food will utilize no more than 65% of the acute PAD for infants 
    and children. EPA generally has no concern for exposures below 100% of 
    the PAD because the PAD represents the level at or below which daily 
    aggregate dietary exposure will not pose appreciable risks to human 
    health.
        3. Chronic risk. Using the exposure assumptions described in this 
    unit, EPA has concluded that aggregate exposure to emamectin benzoate 
    from food will utilize 21% of the PAD for the most highly exposed 
    infant and children subgroup, children 1 to 6 years old. EPA generally 
    has no concern for exposures below 100% of the PAD because the PAD 
    represents the level at or below which daily aggregate dietary exposure 
    will not pose appreciable risks to human health. Despite the potential 
    for exposure to emamectin benzoate in drinking water and from non-
    dietary, nonoccupational exposure, EPA does not expect the aggregate 
    exposure to exceed 100% of the PAD.
        4. Short- or intermediate-term risk. Since there are no registered 
    residential uses or other uses that would be expected to result in 
    residential exposure, there is no exposure expected in these scenarios, 
    and thus this risk assessment is not necessary.
        5. Determination of safety. Based on these risk assessments, EPA 
    concludes that there is a reasonable certainty that no harm will result 
    to infants and children from aggregate exposure to emamectin benzoate 
    residues.
    
    V. Other Considerations
    
    A. Metabolism in Plants and Animals
    
        The nature of the residues of emamectin benzoate in plants is 
    adequately understood. The tolerance expression for emamectin benzoate 
    must contain the following: emamectin, 8,9 ZMA and metabolites/
    photodegradates AB1a, MFB1a, and 
    FAB1a. Metabolites/photodegradates 8AOXOMA and 8AOHMA are 
    also of toxicological concern, but based upon their relative levels to 
    the emamectin and the other four emamectin-like residues (8,9 ZMA, 
    AB1a, MFB1a, and FAB1a), these are not 
    needed in the tolerance expression or dietary risk assessment. No 
    metabolism data in livestock and poultry have been provided. For the 
    purposes of this section 18 request, the residue of concern in 
    livestock is emamectin, and 8,9 isomer of B1a and 
    B1b.
    
    B. Analytical Enforcement Methodology
    
        Adequate enforcement methodology is available for both plant and 
    livestock commodities; it is a HPLC method using fluorescence as the 
    means of detection. The methods described in MRID 44795001 are adequate 
    to enforce the tolerance expression.
        The method may be requested from: Calvin Furlow, PIRIB, IRSD 
    (7502C), Office of Pesticide Programs, Environmental Protection Agency, 
    401 M St., SW., Washington, DC 20460; telephone number: (703) 305-5229; 
    e-mail address: furlow.calvin@epa.gov.
    
    C. Magnitude of the Residues
    
        Residues of emamectin and its metabolites and photodegradates are 
    not expected to exceed 0.002 ppm in/on cottonseed, 0.006 ppm in 
    cottonseed oil, 0.002 ppm cotton meal, 0.004 ppm in cotton hulls, and 
    0.025 ppm in gin trash; and 0.002 ppm in the meat, milk, fat, liver, 
    and kidney of cattle, goats, sheep, and swine as a result of this 
    section 18 use. Secondary residues are expected in animal commodities 
    as gin trash containing measurable residues is among the feed items 
    associated with this section 18 use. Secondary residues in milk, meat, 
    fat, kidney and liver of cattle, goats, sheep, and swine are not 
    expected to exceed 0.002 ppm. Residues are not expected in poultry 
    commodities, since cotton gin trash is not a significant feed item of 
    poultry, and exposure would be negligible.
    
    D. Rotational Crop Restrictions
    
        Based on available information, the confined rotational crop data 
    base is adequate and no plantback restrictions are needed on labels.
    
    [[Page 1801]]
    
     E. International Residue Limits
    
        There are no Codex, Canadian, or Mexican MRLs for emamectin.
    
    VI. Conclusion
    
        Therefore, tolerances are established for combined residues of 
    emamectin benzoate, 4'-epi-methylamino- 4'-deoxyavermectin 
    B1 benzoate (a mixture of a minimum of 90% 4'-epi-
    methylamino-4'- deoxyavermectin B1a and a maximum of 10% 4'-
    epi-methlyamino-4'deoxyavermectin B1b benzoate) and its 
    metabolites 8,9 isomer of the B1a and B1b 
    component of the parent insecticide (8,9 ZMA); 4'-deoxy-4'-epi-
    aminoavermectin B1 (AB1a); 4'deoxy-4'-epi-(N-
    formyl-N-methyl)amino-avermectin (MFB1a); and 4'-deoxy-4'-
    epi-(N-formyl)amino-avermectin B1 (FAB1a) in 
    cottonseed at 0.002 ppm, cottonseed oil at 0.0006 ppm, cotton meal at 
    0.002 ppm, cotton hulls at 0.004 ppm, and cotton gin trash at 0.025 
    ppm; and in the milk, meat, fat, liver, and kidney of cattle, goats, 
    sheep, and swine at 0.002 ppm.
    
    VII. Objections and Hearing Requests
    
        Under section 408(g) of the FFDCA, as amended by the FQPA, any 
    person may file an objection to any aspect of this regulation and may 
    also request a hearing on those objections. The EPA procedural 
    regulations which govern the submission of objections and requests for 
    hearings appear in 40 CFR part 178. Although the procedures in those 
    regulations require some modification to reflect the amendments made to 
    the FFDCA by the FQPA of 1996, EPA will continue to use those 
    procedures, with appropriate adjustments, until the necessary 
    modifications can be made. The new section 408(g) provides essentially 
    the same process for persons to ``object'' to a regulation for an 
    exemption from the requirement of a tolerance issued by EPA under new 
    section 408(d), as was provided in the old FFDCA sections 408 and 409. 
    However, the period for filing objections is now 60 days, rather than 
    30 days.
    
    A. What Do I Need to Do to File an Objection or Request a Hearing?
    
        You must file your objection or request a hearing on this 
    regulation in accordance with the instructions provided in this unit 
    and in 40 CFR part 178. To ensure proper receipt by EPA, you must 
    identify docket control number OPP-300958 in the subject line on the 
    first page of your submission. All requests must be in writing, and 
    must be mailed or delivered to the Hearing Clerk on or before March 13, 
    2000.
        1. Filing the request. Your objection must specify the specific 
    provisions in the regulation that you object to, and the grounds for 
    the objections (40 CFR 178.25). If a hearing is requested, the 
    objections must include a statement of the factual issues(s) on which a 
    hearing is requested, the requestor's contentions on such issues, and a 
    summary of any evidence relied upon by the objector (40 CFR 178.27). 
    Information submitted in connection with an objection or hearing 
    request may be claimed confidential by marking any part or all of that 
    information as CBI. Information so marked willnot be disclosed except 
    in accordance with procedures set forth in 40 CFR part 2. A copy of the 
    information that does not contain CBI must be submitted for inclusion 
    in the public record. Information not marked confidential may be 
    disclosed publicly by EPA without prior notice.
        Mail your written request to: Office of the Hearing Clerk (1900), 
    Environmental Protection Agency, 401 M St., SW., Washington, DC 20460. 
    You may also deliver your request to the Office of the Hearing Clerk in 
    Rm. M3708, Waterside Mall, 401 M St., SW., Washington, DC 20460. The 
    Office of the Hearing Clerk is open from 8 a.m. to 4 p.m., Monday 
    through Friday, excluding legal holidays. The telephone number for the 
    Office of the Hearing Clerk is (202) 260-4865.
        2. Tolerance fee payment. If you file an objection or request a 
    hearing, you must also pay the fee prescribed by 40 CFR 180.33(i) or 
    request a waiver of that fee pursuant to 40 CFR 180.33(m). You must 
    mail the fee to: EPA Headquarters Accounting Operations Branch, Office 
    of Pesticide Programs, P.O. Box 360277M, Pittsburgh, PA 15251. Please 
    identify the fee submission by labeling it ``Tolerance Petition Fees.''
        EPA is authorized to waive any fee requirement ``when in the 
    judgement of the Administrator such a waiver or refund is equitable and 
    not contrary to the purpose of this subsection.'' For additional 
    information regarding the waiver of these fees, you may contact James 
    Tompkins by phone at (703) 305-5697, by e-mail at tompkins.jim@epa.gov, 
    or by mailing a request for information to Mr. Tompkins at Registration 
    Division (7505C), Office of Pesticide Programs, Environmental 
    Protection Agency, 401 M St., SW., Washington, DC 20460.
        If you would like to request a waiver of the tolerance objection 
    fees, you must mail your request for such a waiver to: James Hollins, 
    Information Resources and Services Division (7502C), Office of 
    Pesticide Programs, Environmental Protection Agency, 401 M St., SW., 
    Washington, DC 20460.
        3. Copies for the Docket. In addition to filing an objection or 
    hearing request with the Hearing Clerk as described in Unit VII.A., you 
    should also send a copy of your request to the PIRIB for its inclusion 
    in the official record that is described in Unit I.B.2. Mail your 
    copies, identified by the docket control number OPP-300958, to: Public 
    Information and Records Integrity Branch, Information Resources and 
    Services Division (7502C), Office of Pesticide Programs, Environmental 
    Protection Agency, 401 M St., SW., Washington, DC 20460. In person or 
    by courier, bring a copy to the location of the PIRIB described in Unit 
    I.B.2. You may also send an electronic copy of your request via e-mail 
    to: opp-docket@epa.gov. Please use an ASCII file format and avoid the 
    use of special characters and any form of encryption. Copies of 
    electronic objections and hearing requests will also be accepted on 
    disks in WordPerfect 6.1/8.0 file format or ASCII file format. Do not 
    include any CBI in your electronic copy. You may also submit an 
    electronic copy of your request at many Federal Depository Libraries.
    
    B. When Will the Agency Grant a Request for a Hearing?
    
        A request for a hearing will be granted if the Administrator 
    determines that the material submitted shows the following: There is a 
    genuine and substantial issue of fact; there is a reasonable 
    possibility that available evidence identified by the requestor would, 
    if established resolve one or more of such issues in favor of the 
    requestor, taking into account uncontested claims or facts to the 
    contrary; and resolution of the factual issues(s) in the manner sought 
    by the requestor would be adequate to justify the action requested (40 
    CFR 178.32).
    
    VIII. Regulatory Assessment Requirements
    
        This final rule establishes a time-limited tolerance under FFDCA 
    section 408. The Office of Management and Budget (OMB) has exempted 
    these types of actions from review under Executive Order 12866, 
    entitled Regulatory Planning and Review (58 FR 51735, October 4, 1993). 
    This final rule does not contain any information collections subject to 
    OMB approval under the Paperwork Reduction Act (PRA), 44 U.S.C. 3501 et 
    seq., or impose any enforceable duty or contain any unfunded mandate as 
    described under Title II of the Unfunded Mandates Reform Act of 1995 
    (UMRA) (Public Law 104-4). Nor does it require any prior consultation 
    as specified by Executive Order 13084, entitled
    
    [[Page 1802]]
    
    Consultation and Coordination with Indian Tribal Governments (63 FR 
    27655, May 19, 1998); special considerations as required by Executive 
    Order 12898, entitled Federal Actions to Address Environmental Justice 
    in Minority Populations and Low-Income Populations (59 FR 7629, 
    February 16, 1994); or require OMB review or any Agency action under 
    Executive Order 13045, entitled Protection of Children from 
    Environmental Health Risks and Safety Risks (62 FR 19885, April 23, 
    1997). This action does not involve any technical standards that would 
    require Agency consideration of voluntary consensus standards pursuant 
    to section 12(d) of the National Technology Transfer and Advancement 
    Act of 1995 (NTTAA), Public Law 104-113, section 12(d) (15 U.S.C. 272 
    note). Since tolerances and exemptions that are established on the 
    basis of a FIFRA section 18 petition under FFDCA section 408, such as 
    the tolerance in this final rule, do not require the issuance of a 
    proposed rule, the requirements of the Regulatory Flexibility Act (RFA) 
    (5 U.S.C. 601 et seq.) do not apply. In addition, the Agency has 
    determined that this action will not have a substantial direct effect 
    on States, on the relationship between the national government and the 
    States, or on the distribution of power and responsibilities among the 
    various levels of government, as specified in Executive Order 13132, 
    entitled Federalism (64 FR 43255, August 10, 1999). Executive Order 
    13132 requires EPA to develop an accountable process to ensure 
    ``meaningful and timely input by State and local officials in the 
    development of regulatory policies that have federalism implications.'' 
    ``Policies that have federalism implications'' is defined in the 
    Executive Order to include regulations that have ``substantial direct 
    effects on the States, on the relationship between the national 
    government and the States, or on the distribution of power and 
    responsibilities among the various levels of government.'' This final 
    rule directly regulates growers, food processors, food handlers and 
    food retailers, not States. This action does not alter the 
    relationships or distribution of power and responsibilities established 
    by Congress in the preemption provisions of FFDCA section 408(n)(4).
    
    IX. Submission to Congress and the General Accounting Office
    
        The Congressional Review Act, 5 U.S.C. 801 et seq., as added by the 
    Small Business Regulatory Enforcement Fairness Act of 1996, generally 
    provides that before a rule may take effect, the agency promulgating 
    the rule must submit a rule report, which includes a copy of the rule, 
    to each House of the Congress and to the Comptroller General of the 
    United States. EPA will submit a report containing this rule and other 
    required information to the U.S. Senate, the U.S. House of 
    Representatives, and the Comptroller General of the United States prior 
    to publication of this final rule in the Federal Register. This final 
    rule is not a ``major rule'' as defined by 5 U.S.C. 804(2).
        Environmental protection, Administrative practice and procedure, 
    Agricultural commodities, Pesticides and pests, Reporting and 
    recordkeeping requirements.
    
        Dated: December 22, 1999.
    
    James Jones,
    Director, Registration Division, Office of Pesticide Programs.
        Therefore, 40 CFR chapter I is amended as follows:
    
    PART 180--[AMENDED]
    
        1. The authority citation for part 180 continues to read as 
    follows:
    
        Authority: 21 U.S.C. 321(q), 346(a) and 371.
    
    
        2. In Sec. 180.505, by alphabetically adding the following 
    commodities to the table in paragraph (b) to read as follows:
    
    
    Sec. 180.505  Emamectin Benzoate; tolerances for residues.
    
    *    *    *    *    *
         (b) * * *
    
    ------------------------------------------------------------------------
                                                                 Expiration/
                       Commodity                     Parts per    Revocation
                                                      million        date
    ------------------------------------------------------------------------
     
                      *        *        *        *        *
    Cattle, fat...................................        0.002     12/31/01
     
    Cattle, meat..................................        0.002     12/31/01
     
    Cattle, meat byproduct........................        0.002     12/31/01
     
    Cotton gin byproduct..........................        0.025     12/31/01
     
    Cotton hulls..................................        0.004     12/31/01
     
    Cotton, meal..................................        0.002     12/31/01
     
    Cottonseed....................................        0.002     12/31/01
     
    Cottonseed oil................................        0.006     12/31/01
     
    Goats, fat....................................        0.002     12/31/01
     
    Goats, meat...................................        0.002     12/31/01
     
    Goats, meat byproduct.........................        0.002     12/31/01
     
    Hogs, fat.....................................        0.002     12/31/01
     
    Hogs, meat....................................        0.002     12/31/01
     
    Hogs, meat byproduct..........................        0.002     12/31/01
     
    Sheep, fat....................................        0.002     12/31/01
     
    Sheep, meat...................................        0.002     12/31/01
     
    Sheep, meat byproduct.........................        0.002     12/31/01
    ------------------------------------------------------------------------
    
    *    *    *    *    *
    
    [FR Doc. 00-735 Filed 1-11-00; 8:45 am]
    BILLING CODE 6560-50-F
    
    
    

Document Information

Effective Date:
1/12/2000
Published:
01/12/2000
Department:
Environmental Protection Agency
Entry Type:
Rule
Action:
Final rule.
Document Number:
00-735
Dates:
This regulation is effective January 12, 2000. Objections and requests for hearings, identified by docket control number OPP-300958, must be received by EPA on or before March 13, 2000.
Pages:
1796-1802 (7 pages)
Docket Numbers:
OPP-300958, FRL-6398-5
RINs:
2070-AB78
PDF File:
00-735.pdf
CFR: (1)
40 CFR 180.505