99-18482. Spinosad; Pesticide Tolerances for Emergency Exemptions  

  • [Federal Register Volume 64, Number 139 (Wednesday, July 21, 1999)]
    [Rules and Regulations]
    [Pages 39053-39059]
    From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
    [FR Doc No: 99-18482]
    
    
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    ENVIRONMENTAL PROTECTION AGENCY
    
    40 CFR Part 180
    
    [OPP-300882; FRL-6086-7]
    RIN 2070-AB78
    
    
    Spinosad; Pesticide Tolerances for Emergency Exemptions
    
    AGENCY: Environmental Protection Agency (EPA).
    
    
    [[Page 39054]]
    
    
    ACTION: Final rule.
    
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    SUMMARY: This regulation establishes a time-limited tolerance for 
    residues of spinosad in or on all commodities in connection with 
    quarantine eradication programs against exotic, non-indigenous, fruit 
    fly species, where a separate higher tolerance is not already 
    established. In this same action, EPA is also establishing a time-
    limited tolerance for use of spinosad on cranberries. These actions are 
    in response to EPA's granting of emergency exemptions under section 18 
    of the Federal Insecticide, Fungicide, and Rodenticide Act authorizing 
    use of the pesticide under the conditions described above. This 
    regulation establishes a maximum permissible level for residues of 
    spinosad on these food commodities pursuant to section 408(l)(6) of the 
    Federal Food, Drug, and Cosmetic Act, as amended by the Food Quality 
    Protection Act of 1996. The tolerance in connection with the use of 
    spinosad in quarantine eradication programs will expire and is revoked 
    on December 1, 2002. The time-limited tolerance for spinosad on 
    cranberries will expire and is revoked on June 1, 2001.
    
    DATES: This regulation is effective July 21, 1999. Objections and 
    requests for hearings must be received by EPA on or before September 
    20, 1999.
    ADDRESSES: Written objections and hearing requests, identified by the 
    docket control number [OPP-300882], must be submitted to: Hearing Clerk 
    (1900), Environmental Protection Agency, Rm. M3708, 401 M St., SW., 
    Washington, DC 20460. Fees accompanying objections and hearing requests 
    shall be labeled ``Tolerance Petition Fees'' and forwarded to: EPA 
    Headquarters Accounting Operations Branch, OPP (Tolerance Fees), P.O. 
    Box 360277M, Pittsburgh, PA 15251. A copy of any objections and hearing 
    requests filed with the Hearing Clerk identified by the docket control 
    number, [OPP-300882], must also be submitted 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, bring a copy of 
    objections and hearing requests to Rm. 119, Crystal Mall #2, 1921 
    Jefferson Davis Hwy., Arlington, VA.
        A copy of objections and hearing requests filed with the Hearing 
    Clerk may also be submitted electronically by sending electronic mail 
    (e-mail) to: opp-docket@epa.gov. Copies of electronic objections and 
    hearing requests must be submitted as an ASCII file avoiding the use of 
    special characters and any form of encryption. Copies of objections and 
    hearing requests will also be accepted on disks in WordPerfect 5.1/6.1 
    or ASCII file format. All copies of electronic objections and hearing 
    requests must be identified by the docket control number [OPP-300882]. 
    No Confidential Business Information (CBI) should be submitted through 
    e-mail. Copies of electronic objections and hearing requests on this 
    rule may be filed online at many Federal Depository Libraries.
    
    FOR FURTHER INFORMATION CONTACT: By mail: Daniel J. Rosenblatt, 
    Registration Division (7505C), Office of Pesticide Programs, 
    Environmental Protection Agency, 401 M St., SW., Washington, DC 20460. 
    Office location, telephone number, and e-mail address: Rm. 286, Crystal 
    Mall #2, 1921 Jefferson Davis Hwy., Arlington, VA, 703-308-9375; 
    rosenblatt.dan@epa.gov.
    
    SUPPLEMENTARY INFORMATION: EPA, on its own initiative, pursuant to 
    sections 408(l)(6) of the Federal Food, Drug, and Cosmetic Act (FFDCA), 
    21 U.S.C. 346a, is establishing tolerances for residues of the 
    insecticide spinosad on all commodities at 0.02 parts per million (ppm) 
    when used in connection with quarantine eradication programs against 
    exotic, non-indigenous, fruit fly species, where a separate higher 
    tolerance is not already established. This tolerance will expire and is 
    revoked on December 1, 2002. EPA is also establishing a tolerance for 
    residues of spinosad on cranberries when used under a section 18 
    emergency exemption. The tolerance for cranberries will expire and is 
    revoked on June 1, 2001. EPA will publish a document in the Federal 
    Register to remove the revoked tolerances from the Code of Federal 
    Regulations.
    
    I. Background and Statutory Findings
    
        The Food Quality Protection Act of 1996 (FQPA) (Public Law 104-170) 
    was signed into law August 3, 1996. FQPA amends both the Federal Food, 
    Drug, and Cosmetic Act (FFDCA), 21 U.S.C. 301 et seq., and the Federal 
    Insecticide, Fungicide, and Rodenticide Act (FIFRA), 7 U.S.C. 136 et 
    seq. The FQPA amendments went into effect immediately. Among other 
    things, FQPA amends FFDCA to bring all EPA pesticide tolerance-setting 
    activities under a new section 408 with a new safety standard and new 
    procedures. These activities are described in this preamble and 
    discussed in greater detail in the final rule establishing the time-
    limited tolerance associated with the emergency exemption for use of 
    propiconazole on sorghum (61 FR 58135, November 13, 1996) (FRL-5572-9).
        New 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 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 FQPA. EPA has established regulations governing such 
    emergency exemptions in 40 CFR part 166.
        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.
        Because decisions on section 18-related tolerances must proceed 
    before EPA reaches closure on several policy issues relating to 
    interpretation and implementation of the FQPA, EPA does not intend for 
    its actions on such tolerances to set binding precedents for the 
    application of section 408 and the new safety standard to other 
    tolerances and exemptions.
    
    II. Emergency Exemption for Spinosad
    
        The U.S. Department of Agriculture's Animal and Plant Health 
    Inspection Service (USDA/APHIS) is responsible for ensuring that new 
    and invasive pest species do not become established in the United 
    States. In order to engage in emergency eradication programs should an 
    infestation of a quarantined fruit fly
    
    [[Page 39055]]
    
    pest be discovered, USDA/APHIS applied for section 18 quarantine 
    exemptions to use, among other things, the pesticide spinosad against 
    these species in Florida.
        Florida is vulnerable to outbreaks of non-indigenous fruit fly 
    species in the Tephritidae family. USDA/APHIS, working in conjunction 
    with the Florida Department of Agriculture and Consumer Services, has 
    eradicated numerous incipient populations of the Mediterranean fruit 
    fly over the past two seasons. The discovery of an outbreak of a 
    population of a new or non-established pest species carries significant 
    trade implications. The economic losses associated with an established 
    population of Mediterranean fruit flies or other Tephritidae pests 
    would be severe.
        EPA concurs that an emergency situation exists in relation to these 
    pests and has authorized a section 18 quarantine exemption for use of 
    spinosad in quarantine programs against exotic, non-indigenous, 
    quarantined, fruit fly species. Time-limited tolerances are also needed 
    to support this exemption in a generic manner because outbreaks of 
    these pest species are possible in nearly all commercial agricultural 
    settings.
        Separately, EPA also authorized an emergency exemption for the use 
    of spinosad on cranberries in order to control the sparganothis fruit 
    worm. Growers are experiencing loss of efficacy connected with use of 
    the historic pesticide controls and may be faced with yield loss at 20% 
    of the crop over previous growing seasons. On heavily fruiting, early 
    cultivars, damage may approach 35% crop loss. EPA concurs that 
    emergency conditions exist and has authorized spinosad's use on 
    cranberries in Massachusetts.
        As part of its assessment of these emergency exemptions, EPA 
    assessed the potential risks presented by residues of spinosad in or on 
    cranberries and also on all commodities where a separate higher 
    tolerance is not already established. In doing so, EPA considered the 
    safety standard in FFDCA section 408(b)(2), and EPA decided that the 
    necessary tolerance 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 under section 408(e), as provided in 
    section 408(l)(6). Although these tolerances will expire and are 
    revoked on the dates specified elsewhere in this document, under FFDCA 
    section 408(l)(5), residues of the pesticide not in excess of the 
    amounts specified in the tolerance remaining in or on cranberries or 
    all commodities where a separate higher tolerance is not established 
    after that date will not be unlawful, provided the pesticide was 
    applied in a manner that was lawful under FIFRA, and the residues do 
    not exceed a level that was authorized by this tolerance at the time of 
    that application. EPA will take action to revoke this tolerance earlier 
    if any experience with, scientific data on, or other relevant 
    information on this pesticide indicate that the residues are not safe.
        Because this tolerance is being approved under emergency 
    conditions, EPA has not made any decisions about whether spinosad meets 
    EPA's registration requirements for use on cranberries or all 
    commodities where a separate higher tolerance is not established or 
    whether a permanent tolerance for this use would be appropriate. Under 
    these circumstances, EPA does not believe that these tolerances serve 
    as a basis for registration of spinosad by a State for special local 
    needs under FIFRA section 24(c). Nor does this tolerance serve as the 
    basis for any States other than those where the exemptions were issued 
    to use this pesticide on these crops 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 exemption, contact the Agency's Registration Division at 
    the address provided under the ``ADDRESSES'' section.
    
    III. 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 spinosad 
    and to make a determination on aggregate exposure, consistent with 
    section 408(b)(2), for a time-limited tolerance for residues of 
    spinosad on cranberries and all commodities where a separate higher 
    tolerance is not established at 0.02 ppm. EPA's assessment of the 
    dietary exposures and risks associated with establishing the tolerance 
    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 spinosad are 
    discussed in this unit.
    
    B. Toxicological Endpoint
    
        1. Acute toxicity. No acute toxicity endpoint was selected by EPA 
    because a single exposure dose did not produce toxicological effects.
        2. Short- and intermediate-term toxicity. No toxicology endpoint 
    was selected by EPA for these exposure durations.
        3. Chronic toxicity. EPA has established the Reference Dose (RfD) 
    for spinosad at 0.0268 milligram/kilogram/day (mg/kg/day). This RfD is 
    based on a no observed adverse effect level (NOAEL) of 2.68 mg/kg/day 
    established in a chronic toxicity study in dogs. The lowest observed 
    adverse effect level (LOAEL) was 8.46 mg/kg/day based on vacuolation in 
    glandular cells and lymphatic tissues, arteritis and increases in serum 
    enzymes such as alanine aminotransferase, and aspartate 
    aminotransferase, and triglyceride levels in dogs fed spinosad in the 
    diet at dose levels 1.44, 2,68, or 8.46 mg/kg/day for 52 weeks. A 100-
    fold uncertainty factor (UF) was applied to the NOAEL of 2.68 mg/kg/day 
    to account for inter- and intraspecies variation.
        4. Carcinogenicity. EPA has determined that there is no evidence of 
    carcinogenicity in studies involving spinosad in either the mouse or 
    rat. Therefore, a carcinogenic risk assessment is not required.
    
    C. Exposures and Risks
    
        1. From food and feed uses. Tolerances have been established (40 
    CFR 180.495) for the residues of spinosad, in or on a variety of raw 
    agricultural commodities. For example, tolerances have been established 
    for the citrus fruits group, the fruiting vegetables group, and on meat 
    and milk. Risk assessments were conducted by EPA to assess dietary 
    exposures and risks from as follows:
    
    [[Page 39056]]
    
        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. EPA did not identify a toxicity endpoint 
    for this exposure duration. Therefore, a risk assessment for this 
    exposure scenario is not needed.
        ii. Chronic exposure and risk. Based on a NOAEL of 2.68 mg/kg/day 
    and an uncertainty factor of 100, EPA performed a dietary risk 
    assessment which considered exposure that may result from use under 
    this section 18 as well as all other registered uses. The highest 
    exposed population subgroup based on a Tier 1 exposure analysis from 
    the dietary exposure evaluation system (DEEM) was children ages 1-6 
    years. This risk assessment also took into account the available 
    information on spinosad concerning the additional safety factor called 
    for by FQPA in order to protect infants and children. This calculation 
    builds additional safety factors, as needed, into the risk assessment 
    by using a ratio that compares the reference dose against the FQPA 
    safety factor that is appropriate for a particular pesticide. This 
    ratio is known as the population adjusted dose (PAD). In this case, EPA 
    concluded that the additional 10x safety factor for spinosad could be 
    removed. Section E of this unit contains the rationale for reducing the 
    10x safety factor for spinosad. EPA calculated that chronic dietary 
    (food only) exposure at tolerance levels will occupy 39% of the PAD. 
    Exposure estimates for adult populations are less than 29% of the PAD.
        2. From drinking water. No chemical-specific drinking water 
    monitoring data are available. However, EPA used modeling data 
    involving both ground and surface water situations to determine 
    conservative estimated environmental concentrations (EECs). Also, EPA 
    back-calculated drinking water levels of comparison (DWLOCs) to 
    determine whether exposure to spinosad via drinking water is likely to 
    be of concern given the modeled EECs. EPA has concluded that drinking 
    water is not expected to be a significant source of exposure to 
    spinosad.
        Data suggests that spinosad is not mobile or persistent, and 
    therefore, has little potential to leach to ground water or to be 
    transported to surface water in high concentrations. Although spinosad 
    has been shown to photolyze rapidly, EPA used the conservative soil 
    photolysis value of 82 days in modeling the persistence of the chemical 
    in surface waters.
        i. Acute exposure and risk. The high-end EEC is based on the 
    highest registered application rate and results in an EEC of 0.092 
    micrograms/liter. The highest exposed population subgroup is children 
    1-6 years. The calculated DWLOC for that population subgroup is 165 
    micrograms/liter. This EEC value is over 1,000 times less than the 
    lowest DWLOC. Therefore, EPA concludes that drinking water is not 
    expected to be a significant source of exposure to spinosad.
        ii. Chronic exposure and risk. The characteristics of spinosad 
    suggest that the exposure and risks from spinosad in drinking water are 
    analogous for acute and chronic exposures. No separate chronic analysis 
    is needed.
        Because the Agency lacks sufficient water-related exposure data to 
    complete a comprehensive drinking water risk assessment for many 
    pesticides, EPA has commenced and nearly completed a process to 
    identify a reasonable yet conservative bounding figure for the 
    potential contribution of water-related exposure to the aggregate risk 
    posed by a pesticide. In developing the bounding figure, EPA estimated 
    residue levels in water for a number of specific pesticides using 
    various data sources. The Agency then applied the estimated residue 
    levels, in conjunction with appropriate toxicological endpoints (RfDs 
    or acute dietary NOAELs) and assumptions about body weight and 
    consumption, to calculate, for each pesticide, the increment of 
    aggregate risk contributed by consumption of contaminated water. While 
    EPA has not yet pinpointed the appropriate bounding figure for exposure 
    from contaminated water, the ranges the Agency is continuing to examine 
    are all below the level that would cause it to exceed the RfD if the 
    tolerance being considered in this document were granted. The Agency 
    has therefore concluded that the potential exposures associated with in 
    water, even at the higher levels the Agency is considering as a 
    conservative upper bound, would not prevent the Agency from determining 
    that there is a reasonable certainty of no harm if the tolerance is 
    granted.
        3. From non-dietary exposure. Spinosad is currently registered for 
    use on the following residential non-food site: turf grass. This 
    registration creates the possibility of exposure to children involved 
    in pica behavior with the ingestion of grass or treated dirt. EPA 
    performed a qualitative analysis of the risks connected with this type 
    of exposure and concluded that based on the toxicology profile of 
    spinosad as well as a reasonable exposure situation that risk to 
    children from the turf use does not exceed the Agency's level of 
    concern.
        i. Acute exposure and risk. Because no toxicological endpoint was 
    selected for acute exposures to spinosad, it is not necessary to 
    calculate a risk assessment to evaluate the acute non-dietary exposure 
    scenario.
        ii. Chronic exposure and risk. EPA's Health Effect Division (HED) 
    performed a qualitative risk assessment to characterize the chronic 
    risks from non-dietary exposure to spinosad. Based on the low 
    application rate on turf (0.41 lb., AI/A.), its non-systemic nature, 
    its short half-life (especially in sunlight), and the rapid 
    incorporation of spinosad metabolites into the general carbon pool, EPA 
    believes that residues of spinosad on turf grass after application 
    would be low and decrease rapidly over time. EPA believes that a 
    quantitative risk assessment for this exposure duration is not 
    reasonable as it is unlikely that children would eat grass/dirt for 
    greater than 6 months continuously. Therefore, EPA believes it is 
    appropriate to use a qualitative assessment of this situation. EPA 
    believes that the risk from children eating turf grass does not exceed 
    the level of concern.
        iii. Short- and intermediate-term exposure and risk. Because no 
    toxicological endpoint was selected for short- and intermediate-term 
    exposures to spinosad, it is not necessary to calculate a risk 
    assessment to evaluate this non-dietary exposure scenario.
        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.''
        EPA does not have, at this time, available data to determine 
    whether spinosad 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, 
    spinosad 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 spinosad 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
    
    [[Page 39057]]
    
    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. As mentioned previously, no toxicology endpoint was 
    identified for this exposure duration. Thus, an aggregate risk 
    assessment for this situation is not needed.
        2. Chronic risk. Using the theoretical maximum residue contribution 
    (TMRC) exposure assumptions described in this unit, EPA has concluded 
    that aggregate exposure to spinosad from food will utilize 29% of the 
    chronic PAD for the U.S. population. The major identifiable subgroup 
    with the highest aggregate exposure is children ages 1-6 years. A 
    separate risk assessment for this population subgroup is described in 
    section E of this unit. EPA generally has no concern for exposures 
    below 100% of the RfD or PAD because the RfD represents the level at or 
    below which daily aggregate dietary exposure over a lifetime will not 
    pose appreciable risks to human health. Despite the potential for 
    exposure to spinosad in drinking water and from non-dietary, non-
    occupational exposure, EPA does not expect the aggregate exposure to 
    exceed 100% of the RfD or the PAD.
        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.
        No toxicology endpoint was selected for spinosad for these exposure 
    durations. Thus, a separate risk assessment for this exposure duration 
    for the U.S. population was not conducted by EPA.
        4. Aggregate cancer risk for U.S. population. Toxicology data 
    suggest that spinosad does not induce cancer. Thus, a cancer risk 
    assessment was not performed and 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 residues.
    
    E. Aggregate Risks and Determination of Safety for Infants and Children
    
        1. Safety factor for infants and children--i. In general. In 
    assessing the potential for additional sensitivity of infants and 
    children to residues of spinosad, EPA considered data from 
    developmental toxicity studies in the rat and rabbit and a 2-generation 
    reproduction study in the rat. The developmental toxicity studies are 
    designed to evaluate adverse effects on the developing organism 
    resulting from maternal pesticide exposure during gestation. 
    Reproduction studies provide information relating to effects from 
    exposure to the pesticide on the reproductive capability of mating 
    animals and data on systemic toxicity.
        FFDCA section 408 provides that EPA shall apply an additional 
    tenfold margin of safety for infants and children in the case of 
    threshold effects to account for prenatal and postnatal toxicity and 
    the completeness of the data base unless EPA determines that a 
    different margin of safety will be safe for infants and children. 
    Margins of safety are incorporated into EPA risk assessments either 
    directly through use of a margin of exposure (MOE) analysis or through 
    using uncertainty (safety) factors in calculating a dose level that 
    poses no appreciable risk to humans. EPA believes that reliable data 
    support using the standard MOE and uncertainty factor (usually 100 for 
    combined inter- and intraspecies variability) and not the additional 
    tenfold MOE/uncertainty factor when EPA has a complete data base under 
    existing guidelines and when the severity of the effect in infants or 
    children or the potency or unusual toxic properties of a compound do 
    not raise concerns regarding the adequacy of the standard MOE/safety 
    factor.
        ii. Developmental toxicity studies. In a prenatal developmental 
    toxicity study in rabbits, the NOAEL for maternal toxicity is 
    50 mg/kg/day. There were no developmental effects that could 
    be attributed to administration of spinosad. The NOAEL for 
    developmental toxicity is 50 mg/kg/day (highest dose 
    tested).
        In a prenatal developmental toxicity study in rats, the NOAEL for 
    maternal toxicity is 200 mg/kg/day (highest dose tested). 
    There were no developmental effects that could be attributed to 
    administration of spinosad. The NOAEL for developmental toxicity is 
    200 mg/kg/day (highest dose tested).
        iii. Reproductive toxicity study. In a 2-generation reproduction 
    study, for parental systemic toxicity, the NOAEL was 10 mg/kg/day and 
    the LOAEL was 100 mg/kg/day, based on increased heart, kidney, liver, 
    spleen and thyroid weights. For offspring toxicity, the NOAEL was 10 
    mg/kg/day and the LOAEL was 100 mg/kg/day, based on decreased litter 
    size, survival (F2), and body weights. Reproductive effects 
    at that dose level included increased incidence of dystocia and or 
    vaginal bleeding after parturition with associated increase in 
    mortality of dams.
        iv. Pre- and postnatal sensitivity. There was no increased 
    susceptibility to rats or rabbits following in utero and or postnatal 
    exposure to spinosad.
        v. Conclusion. Based on the existing toxicological data base, no 
    indication of increased susceptibility of rat or rabbit fetuses to in 
    utero and or postnatal exposure, and that there is no requirement for a 
    developmental neurotoxicity study, EPA determined that the 10x safety 
    factor for increased sensitivity of infants and children can be removed 
    (i.e., 1x).
        2. Acute risk. No toxicology endpoint was selected for exposure to 
    spinosad based on acute exposure. Thus, EPA did not calculate a risk 
    assessment for this exposure duration for infants and children.
        3. Chronic risk. Using the exposure assumptions described in this 
    unit, EPA has concluded that aggregate exposure to spinosad from food 
    will utilize 39% of the chronic PAD for infants and children. EPA 
    generally has no concern for exposures below 100% of the chronic PAD 
    because the RfD or PAD represents the level at or below which daily 
    aggregate dietary exposure over a lifetime will not pose appreciable 
    risks to human health. Despite the potential for exposure to spinosad 
    in drinking water and from non-dietary, non-occupational exposure, EPA 
    does not expect the aggregate exposure to exceed 100% of the RfD.
        4. Short- or intermediate-term risk. No toxicology endpoint was 
    selected for exposure to spinosad based on short- or intermediate-term 
    exposure. Thus, EPA did not calculate a risk assessment for these 
    exposure durations for infants and children.
        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 spinosad residues.
    
    IV. Other Considerations
    
    A. Metabolism in Plants and Animals
    
        EPA has reviewed the results of plant and animal metabolism studies 
    in numerous crops and animals. The metabolism of spinosad is adequately 
    understood. EPA has concluded that the metabolism and fermentation 
    impurities of spinosad were of no more toxicological concern than the 
    two parent compounds (spinosyns Factor A and Factor D).
    
     B. Analytical Enforcement Methodology
    
        Enforcement methods have already been accepted and published to 
    enforce tolerances for spinosad.
    
    [[Page 39058]]
    
     C. Magnitude of Residues
    
        No field trial data are available from the proposed use of spinosad 
    against the exotic fruit flies. However, based on the low use rate and 
    photodegradability of spinosad, EPA does not expect residues to be 
    detectable. An analysis of the expected residue level was calculated 
    based on the highest registered use rate for spinosad. Based on its 
    rapid incorporation into the general carbon pool, EPA believes that 
    residues will be most strongly influenced by the last application 
    rather than the seasonal rate. The low use rate suggests that residues 
    will be at or below 0.02 ppm, the level of quantitation.
    
     D. International Residue Limits
    
        No international tolerances for spinosad have been established that 
    correspond to these actions.
    
     E. Rotational Crop Restrictions
    
        There are no rotational crop restrictions connected with these 
    actions.
    
    V. Conclusion
    
        Therefore, the tolerances are established for residues of spinosad 
    in or on all commodities at 0.02 ppm when its use is associated with 
    quarantine eradication programs against exotic, non-indigenous, fruit 
    fly species where a separate higher tolerance is not already 
    established. Also, a tolerance of 0.02 ppm is established for spinosad 
    on cranberries when it is used in accordance with a FIFRA section 18 
    exemption.
    
    VI. Objections and Hearing Requests
    
        The new FFDCA section 408(g) provides essentially the same process 
    for persons to ``object'' to a tolerance regulation as was provided in 
    the old section 408 and in section 409. However, the period for filing 
    objections is 60 days, rather than 30 days. EPA currently has 
    procedural regulations which govern the submission of objections and 
    hearing requests. These regulations will require some modification to 
    reflect the new law. However, until those modifications can be made, 
    EPA will continue to use those procedural regulations with appropriate 
    adjustments to reflect the new law.
        Any person may, by September 20, 1999, file written objections to 
    any aspect of this regulation and may also request a hearing on those 
    objections. Objections and hearing requests must be filed with the 
    Hearing Clerk, at the address given under the ``ADDRESSES'' section (40 
    CFR 178.20). A copy of the objections and/or hearing requests filed 
    with the Hearing Clerk should be submitted to the OPP docket for this 
    rulemaking. The objections submitted must specify the provisions of the 
    regulation deemed objectionable and the grounds for the objections (40 
    CFR 178.25). Each objection must be accompanied by the fee prescribed 
    by 40 CFR 180.33(i). 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 tolerance objection fee waivers, 
    contact James Tompkins, Registration Division (7505C), Office of 
    Pesticide Programs, Environmental Protection Agency, 401 M St., SW., 
    Washington, DC 20460. Office location, telephone number, and e-mail 
    address: Rm. 239, Crystal Mall #2, 1921 Jefferson Davis Hwy., 
    Arlington, VA, (703) 305-5697, tompkins.jim@epa.gov. Requests for 
    waiver of tolerance objection fees should be sent to James Hollins, 
    Information Resources and Services Division (7502C), Office of 
    Pesticide Programs, Environmental Protection Agency, 401 M St., SW., 
    Washington, DC 20460.
        If a hearing is requested, the objections must include a statement 
    of the factual issues on which a hearing is requested, the requestor's 
    contentions on such issues, and a summary of any evidence relied upon 
    by the requestor (40 CFR 178.27). A request for a hearing will be 
    granted if the Administrator determines that the material submitted 
    shows the following: There is 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 in the 
    manner sought by the requestor would be adequate to justify the action 
    requested (40 CFR 178.32). 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 will not 
    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.
    
    VII. Public Record and Electronic Submissions
    
        EPA has established a record for this regulation under docket 
    control number [OPP-300882] (including any comments and data submitted 
    electronically). A public version of this record, including printed, 
    paper versions of electronic comments, which does not include any 
    information claimed as CBI, is available for inspection from 8:30 a.m. 
    to 4 p.m., Monday through Friday, excluding legal holidays. The public 
    record is located in Room 119 of the Public Information and Records 
    Integrity Branch, Information Resources and Services Division (7502C), 
    Office of Pesticide Programs, Environmental Protection Agency, Crystal 
    Mall #2, 1921 Jefferson Davis Hwy., Arlington, VA.
        Objections and hearing requests may be sent by e-mail directly to 
    EPA at:
        opp-docket@epa.gov
        E-mailed objections and hearing requests must be submitted as an 
    ASCII file avoiding the use of special characters and any form of 
    encryption.
        The official record for this regulation, as well as the public 
    version, as described in this unit will be kept in paper form. 
    Accordingly, EPA will transfer any copies of objections and hearing 
    requests received electronically into printed, paper form as they are 
    received and will place the paper copies in the official record which 
    will also include all comments submitted directly in writing. The 
    official record is the paper record maintained at the Virginia address 
    in ``ADDRESSES'' at the beginning of this document.
    
    VIII. Regulatory Assessment Requirements
    
    A. Certain Acts and Executive Orders
    
        This final rule establishes a tolerance under section 408 of the 
    FFDCA. 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 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 in 
    accordance with Executive Order 13045, entitled Protection of Children 
    from Environmental Health Risks and Safety Risks (62 FR 19885, April 
    23, 1997).
    
    [[Page 39059]]
    
        In addition, since tolerances and exemptions that are established 
    on the basis of a petition under FFDCA section 408(l)(6), 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. Nevertheless, the Agency previously 
    assessed whether establishing tolerances, exemptions from tolerances, 
    raising tolerance levels or expanding exemptions might adversely impact 
    small entities and concluded, as a generic matter, that there is no 
    adverse economic impact. The factual basis for the Agency's generic 
    certification for tolerance actions published on May 4, 1981 (46 FR 
    24950), and was provided to the Chief Counsel for Advocacy of the Small 
    Business Administration.
    
    B. Executive Order 12875
    
        Under Executive Order 12875, entitled Enhancing the 
    Intergovernmental Partnership (58 FR 58093, October 28, 1993), EPA may 
    not issue a regulation that is not required by statute and that creates 
    a mandate upon a State, local or tribal government, unless the Federal 
    government provides the funds necessary to pay the direct compliance 
    costs incurred by those governments. If the mandate is unfunded, EPA 
    must provide to OMB a description of the extent of EPA's prior 
    consultation with representatives of affected State, local, and tribal 
    governments, the nature of their concerns, copies of any written 
    communications from the governments, and a statement supporting the 
    need to issue the regulation. In addition, Executive Order 12875 
    requires EPA to develop an effective process permitting elected 
    officials and other representatives of State, local, and tribal 
    governments ``to provide meaningful and timely input in the development 
    of regulatory proposals containing significant unfunded mandates.''
        Today's rule does not create an unfunded Federal mandate on State, 
    local, or tribal governments. The rule does not impose any enforceable 
    duties on these entities. Accordingly, the requirements of section 1(a) 
    of Executive Order 12875 do not apply to this rule.
    
    C. Executive Order 13084
    
        Under Executive Order 13084, entitled Consultation and Coordination 
    with Indian Tribal Governments (63 FR 27655, May 19, 1998), EPA may not 
    issue a regulation that is not required by statute, that significantly 
    or uniquely affects the communities of Indian tribal governments, and 
    that imposes substantial direct compliance costs on those communities, 
    unless the Federal government provides the funds necessary to pay the 
    direct compliance costs incurred by the tribal governments. If the 
    mandate is unfunded, EPA must provide OMB, in a separately identified 
    section of the preamble to the rule, a description of the extent of 
    EPA's prior consultation with representatives of affected tribal 
    governments, a summary of the nature of their concerns, and a statement 
    supporting the need to issue the regulation. In addition, Executive 
    Order 13084 requires EPA to develop an effective process permitting 
    elected officials and other representatives of Indian tribal 
    governments ``to provide meaningful and timely input in the development 
    of regulatory policies on matters that significantly or uniquely affect 
    their communities.''
        Today's rule does not significantly or uniquely affect the 
    communities of Indian tribal governments. This action does not involve 
    or impose any requirements that affect Indian tribes. Accordingly, the 
    requirements of section 3(b) of Executive Order 13084 do not apply to 
    this rule.
    
    IX. Submission to Congress and the Comptroller General
    
        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 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 the rule in the Federal Register. This rule is not a 
    ``major rule'' as defined by 5 U.S.C. 804(2).
    
    List of Subjects in 40 CFR Part 180
    
        Environmental protection, Administrative practice and procedure, 
    Agricultural commodities, Pesticides and pests, Reporting and 
    recordkeeping requirements.
    
        Dated: June 30, 1999.
    
    Peter Caulkins,
    Acting 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. Section 180.495, is amended, by adding new paragraph (b) to read 
    as follows:
    
    
     Sec. 180.495  Spinosad; tolerances for residues. 
    
    *    *    *    *    *
        (b) Section 18 emergency exemptions. Factor A is 2-[(6-deoxy-2,3,4-
    tri-O-methyl-o-L-mannopyranosyl)oxy]-13-[[5-(dimethlamino)- tetrahydro-
    6-methyl-2H-pyran-2-yl]oxy]9-ethyl-2,3,3a,5a,6,9,10,11,12,13,14,16a, 
    6b,tetradecahydro-14-methyl-1H-as-Indaceno[3,2d]oxacyclododecin-7,15-
    dione. Factor D is 2-[6-deoxy-2,3,4-tri-O-methyl-o-L-
    mannopyranosyl)oxy]13-[[5-(dimethylamino)-tetrahydri-6-methyl-2H-pyran-
    2-yl]oxy]-9-ethyl-2,3,3a,5a,5b,6,9,10,11,12,13,14,16a,16b-
    tetradecahydro-4,14,dimethyl-1H-as-Indaceno[3,2d]oxacyclododecin-7,15-
    dione.
    
     
    ------------------------------------------------------------------------
                                                                 Expiration/
                       Commodity                     Parts per    Revocation
                                                      million        date
    ------------------------------------------------------------------------
    Cranberries...................................         0.02     06/01/01
     
    All commodities in connection with quarantine          0.02     12/01/02
     eradication programs against exotic, non-
     indigenous, fruit fly species, where a
     separate higher tolerance is not already
     established..................................
    ------------------------------------------------------------------------
    
    *    *    *    *    *
    
    [FR Doc. 99-18482 Filed 7-20-99; 8:45 am]
    BILLING CODE 6560-50-F
    
    
    

Document Information

Effective Date:
7/21/1999
Published:
07/21/1999
Department:
Environmental Protection Agency
Entry Type:
Rule
Action:
Final rule.
Document Number:
99-18482
Dates:
This regulation is effective July 21, 1999. Objections and requests for hearings must be received by EPA on or before September 20, 1999.
Pages:
39053-39059 (7 pages)
Docket Numbers:
OPP-300882, FRL-6086-7
RINs:
2070-AB78
PDF File:
99-18482.pdf
CFR: (1)
40 CFR 180.495