Pesticides; tolerances in food, animal feeds, and raw agricultural commodities: Fenamidone,

[Federal Register: September 29, 2004 (Volume 69, Number 188)]

[Rules and Regulations]

[Page 58058-58066]

From the Federal Register Online via GPO Access [wais.access.gpo.gov]

[DOCID:fr29se04-12]

ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 180

[OPP-2004-0255; FRL-7681-3]

Fenamidone; Pesticide Tolerance

AGENCY: Environmental Protection Agency (EPA).

ACTION: Final rule.

SUMMARY: This regulation establishes tolerances for residues of fenamidone (4H-imidazol-4-one, 3,5-dihydro-5-methyl-2-(methylthio)-5- phenyl-3-(phenylamino), (S)-) in or on garlic, bulb; garlic, great headed; grape (imported); leek; onion, dry bulb; onion, green; onion, welsh; shallot, bulb; shallot, fresh leaves; tomato; tomato, paste; tomato, puree; vegetable, cucurbit, group 09; vegetable, tuberous and corm, subgroup 01C and establishes tolerances for combined residues of fenamidone (4H-imidazol-4-one, 3,5-dihydro-5-methyl-2-(methylthio)-5- phenyl-3-(phenylamino), (S)-) and its metabolite RPA 717879 (2,4- imidazolidinedione, 5-methyl-5-phenyl) in or on fat (beef, goat, and sheep); meat (beef, goat, and sheep); meat byproducts (beef, goat, and sheep); milk; wheat, grain; wheat forage; wheat, hay; and wheat, straw. Wheat tolerances are being established for inadvertent residues in/on a rotated crop. Bayer CropScience requested this tolerance under the Federal Food, Drug, and Cosmetic Act (FFDCA), as amended by the Food Quality Protection Act of 1996 (FQPA).

DATES: This regulation is effective September 29, 2004. Objections and requests for hearings must be received on or before November 29, 2004.

ADDRESSES: To submit a written objection or hearing request follow the detailed instructions as provided in Unit VI. of the SUPPLEMENTARY INFORMATION. EPA has established a docket for this action under Docket identification (ID) number OPP-2004-0255. All documents in the docket are listed in the EDOCKET index at http://www.epa.gov/edocket/.

Although listed in the index, some information is not publicly available, i.e., CBI or other information whose disclosure is restricted by statute. Certain other material, such as copyrighted material, is not placed on the Internet and will be publicly available only in hard copy form. Publicly available docket materials are available either electronically in EDOCKET or in hard copy at the Public Information and Records Integrity Branch (PIRIB), Rm. 119, Crystal Mall 2, 1801 S. Bell St., Arlington, VA. This docket facility is open from 8:30 a.m. to 4 p.m., Monday through Friday, excluding legal holidays. The docket telephone number is (703) 305- 5805.

FOR FURTHER INFORMATION CONTACT: Dennis McNeilly, Registration Division (7505C), Office of Pesticide Programs, Environmental Protection Agency, 1200 Pennsylvania Ave., NW.,Washington, DC 20460-0001; telephone number: (703) 305-6742; e-mail address: mcneilly.dennis@epa.gov.

SUPPLEMENTARY INFORMATION:

  1. General Information

    1. 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 entities may include, but are not limited to:

      Crop production (NAICS 111), e.g., agricultural workers; greenhouse, nursery, and floriculture workers; farmers.

      Animal production (NAICS 112), e.g., cattle ranchers and farmers, dairy cattle farmers, livestock farmers.

      Food manufacturing (NAICS 311), e.g., agricultural workers; farmers; greenhouse, nursery, and floriculture workers; ranchers; pesticide applicators.

      Pesticide manufacturing (NAICS 32532), e.g., agricultural workers; commercial applicators; farmers; greenhouse, nursery, and floriculture workers; residential users.

      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 this unit could also be affected. The North American Industrial Classification System (NAICS) codes have been provided to assist you and others in determining whether this action might apply to certain entities. If you have any questions regarding the applicability of this action to a particular entity, consult the person listed under FOR FURTHER INFORMATION CONTACT.

    2. How Can I Access Electronic Copies of this Document and Other Related Information?

      In addition to using EDOCKET (http://www.epa.gov/edocket/), you may

      access this Federal Register document electronically through the EPA Internet under the ``Federal Register'' listings at http://www.epa.gov/fedrgstr/. A frequently updated electronic version of 40 CFR part 180

      is available on E-CFR Beta Site Two at http://www.gpoaccess.gov/ecfr/.

      To access the OPPTS Harmonized Guidelines referenced in this document, go directly to the guidelines athttp://www.epa.gpo/opptsfrs/home/guidelin.htm/ .

  2. Background and Statutory Findings

    In the Federal Register of January 28, 2004 (69 FR 4138-4143) (FRL- 7337-3), EPA issued a notice pursuant to section 408(d)(3) of FFDCA, 21 U.S.C. 346a(d)(3), announcing the filing of a pesticide petition (PP 1F6300) by Bayer CropScience, 2 T.W. Alexander Dr., Research Triangle Park, NC 27709. This amended the petition previously

    [[Page 58059]]

    announced in the Federal Register of January 4, 2002 (67 FR 592-597) (FRL-6812-2) by including raw agricultural commodity subgroup 01C. The petition requested that 40 CFR 180.579 be amended by establishing tolerances for combined residues of the fungicide fenamidone, and its metabolites in or on the raw agricultural commodities: Potato, 0.05 parts per million (ppm), tomato, 1.0 ppm; tomato paste, 3.5 ppm, tomato puree, 3.5 ppm, bulb vegetable crop group, 1.5 ppm; cucurbit crop group, 0.1 ppm; head lettuce, 15.0 ppm; leaf lettuce, 20.0 ppm; wheat grain, 0.05 ppm, wheat straw, 0.5 ppm; wheat forage, 0.5 ppm, and wheat hay, 0.5 ppm. Tolerances were also proposed for fenamidone and its metabolite RPA 410193 on imported wine grapes at 0.5 ppm. Agency review of the residue data indicates that the following tolerance levels are appropriate: Fenamidone, 4H-imidazol-4-one, 3,5-dihydro-5-methyl-2- (methylthio)-5-phenyl-3-(phenylamino), (S)-, in or on garlic, bulb at 0.20 ppm; garlic, great headed at 0.20 ppm; grape (imported) at 1.0 ppm, leek at 1.5 ppm, onion, dry bulb at 0.20 ppm; onion, green at 1.5 ppm; onion, welsh at 1.5 ppm; shallot, bulb at 0.20 ppm; shallot, fresh leaves at 1.5 ppm; tomato at 1.0 ppm; tomato, paste at 2.2 ppm; tomato, puree at 2.0 ppm; vegetable, cucurbit, group 09 at 0.15 ppm and vegetable, tuberous and corm, subgroup 01C at 0.02 ppm and also for the combined residues of fenamidone (4H-imidazol-4-one, 3,5-dihydro-5- methyl-2-methyl-2-(methylthio)-5-phenyl-3-(phenylamino)) and its metabolite RPA 717879 (2,4-imidazolidinedione, 5-methyl-5-phenyl) in or on fat (beef, goat, and sheep) at 0.10 ppm; meat (beef, goat, and sheep) at 0,10 ppm, meat byproducts (beef, goat, and sheep) at 0.10 ppm; milk at 0.02 ppm; wheat forage at 0.15 ppm; wheat, grain at 0.10 ppm; wheat, hay at 0.50 ppm; wheat, straw at 0.35 ppm. The Agency is establishing tolerances for animal tolerances based on review of the residue data and evaluation of food animal diets, which could include wheat forage and hay. That notice included a summary of the petition prepared by Bayer CropScience, the registrant. There were no comments received in response to the notice of filing.

    Section 408(b)(2)(A)(I) of 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) of FFDCA 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) of FFDCA 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....''

    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 of FFDCA 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).

  3. Aggregate Risk Assessment and Determination of Safety

    Consistent with section 408(b)(2)(D) of FFDCA, 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 and to make a determination on aggregate exposure, consistent with section 408(b)(2) of FFDCA, for a tolerance for residues of fenamidone, in or on garlic, bulb at 0.20 ppm; garlic, great headed at 0.20 ppm; grape (imported) at 1.0 ppm, leek at 1.5 ppm, onion, dry bulb at 0.20 ppm; onion, green at 1.5 ppm; onion, welsh at 1.5 ppm; shallot, bulb at 0.20 ppm; shallot, fresh leaves at 1.5 ppm; tomato at 1.0 ppm; tomato, paste at 2.2 ppm; tomato, puree at 2.0 ppm; vegetable, cucurbit, group 09 at 0.15 ppm and vegetable, tuberous and corm, subgroup 01C at 0.02 ppm and also for the combined residues of fenamidone (4H-imidazol-4-one, 3,5- dihydro-5-methyl-2-(methylthio)-5-phenyl-3-(phenylamino), (S)-) and its metabolite RPA 717879 (2,4-imidazolidinedione, 5-methyl-5-phenyl) in or on fat (beef, goat, and sheep) at 0.10 ppm; meat (beef, goat, and sheep) at 0,10 ppm, meat byproducts (beef, goat, and sheep) at 0.10 ppm; milk at 0.02 ppm; wheat forage at 0.15 ppm; wheat, grain at 0.10 ppm; wheat, hay at 0.50 ppm; wheat, straw at 0.35 ppm. EPA's assessment of exposures and risks associated with establishing the tolerance follows.

    1. 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 fenamidone are discussed in the Federal Register of September 27, 2002 (67 FR 7196- 7198). There have been no changes in the toxicological profile since that Federal Register notice and therefore, the Agency will not repeat the entire table in this final rule but refers to the original document.

    2. Toxicological Endpoints

      The dose at which no adverse effects are observed (the NOAEL) from the toxicology study identified as appropriate for use in risk assessment is used to estimate the toxicological level of concern (LOC). However, the lowest dose at which adverse effects of concern are identified (the LOAEL) is sometimes used for risk assessment if no NOAEL was achieved in the toxicology study selected. An uncertainty factor (UF) is applied to reflect uncertainties inherent in the extrapolation from laboratory animal data to humans and in the variations in sensitivity among members of the human population as well as other unknowns. A UF of 100 is routinely used, 10X to account for interspecies differences and 10X for intraspecies differences.

      Three other types of safety or uncertainty factors may be used: ``Traditional uncertainty factors;'' the ``special FQPA safety factor;'' and the ``default FQPA safety factor.'' By the term ``traditional uncertainty factor,'' EPA is referring to those additional uncertainty factors used prior to FQPA passage to account for database deficiencies. These traditional uncertainty factors have been incorporated by the FQPA into the additional safety factor for the protection of infants and children. The term ``special FQPA safety factor'' refers to those safety factors that are deemed necessary for the protection of infants and children primarily as a result of the FQPA. The ``default FQPA safety factor'' is the additional 10X safety factor that is mandated by the statute unless it is decided that there are reliable data to choose a different additional factor (potentially a traditional uncertainty factor or a special FQPA safety factor).

      For dietary risk assessment (other than cancer) the Agency uses the UF to calculate an acute or chronic reference dose (acute RfD or chronic RfD) where the RfD is equal to the NOAEL divided

      [[Page 58060]]

      by an UF of 100 to account for interspecies and intraspecies differences and any traditional uncertainty factors deemed appropriate (RfD = NOAEL/UF). Where a special FQPA safety factor or the default FQPA safety factor is used, this additional factor is applied to the RfD by dividing the RfD by such additional factor. The acute or chronic Population Adjusted Dose (aPAD or cPAD) is a modification of the RfD to accommodate this type of safety factor.

      For non-dietary risk assessments (other than cancer) the UF is used to determine the LOC. For example, when 100 is the appropriate UF (10X to account for interspecies differences and 10X for intraspecies differences) the LOC is 100. To estimate risk, a ratio of the NOAEL to exposures (margin of exposure (MOE) = NOAEL/exposure) is calculated and compared to the LOC.

      The linear default risk methodology (Q*) is the primary method currently used by the Agency to quantify carcinogenic risk. The Q* approach assumes that any amount of exposure will lead to some degree of cancer risk. A Q* is calculated and used to estimate risk which represents a probability of occurrence of additional cancer cases (e.g., risk). An example of how such a probability risk is expressed would be to describe the risk as one in one hundred thousand (1 X 10-\5\), one in a million (1 X 10-\6\), or one in ten million (1 X 10-\7\). Under certain specific circumstances, MOE calculations will be used for the carcinogenic risk assessment. In this non-linear approach, a ``point of departure'' is identified below which carcinogenic effects are not expected. The point of departure is typically a NOAEL based on an endpoint related to cancer effects though it may be a different value derived from the dose response curve. To estimate risk, a ratio of the point of departure to exposure (MOEcancer= point of departure/exposures) is calculated.

      A summary of the toxicological endpoints for fenamidone used for human risk assessment is shown in Table 1 of this unit:

      Table 1.--Summary of Toxicological Dose and Endpoints for Fenamidone for Use in Human Risk Assessment

      Dose Used in Risk Assessment,

      Special FQPA SF and Exposure Scenario

      Interspecies and Level of Concern for Study and Toxicological Intraspecies and any Risk Assessment

      Effects Traditional UF

      Acute Dietary

      NOAEL = 125 milligram/ Special FQPA SF = 1X Acute Neurotoxicity (General population including infants kilogram/day (mg/kg/ aPAD = acute RfD

      Study in Rats and children).

      day) UF = 1,000 Acute (0.13)/Special FQPA SF LOAEL = 500 mg/kg/day RfD = 0.13 mg/kg/day 1X = 0.13 mg/kg/day based on urination, staining/soiling of the anogenital region, mucous in the feces, and unsteady gait in the females.

      Chronic Dietary

      NOAEL= 2.83 male/femal Special FQPA SF = 1X 2-Year Chronic Toxicity/ (All populations).................... (M/F) mg/kg/day UF = cPAD = chronic RfD Carcinogenicity Study 1,000 Chronic RfD = (0.003)/Special FQPA in Rats 0.003 mg/kg/day

      SF 1X = 0.003 mg/kg/ LOAEL = 7.07/9.24 mg/ day

      kg/day based on increase in severity of diffuse thyroid C- cell hyperplasia in both sexes.

      Short-Term Dermal

      Dermal (or oral) study LOC for MOE = 1,000 90-Day Feeding Study in (1 to 7 days)........................ NOAEL= 10.4 mg/kg/day (Residential).......... Rats (Residential)........................

      LOAEL = 68.27 mg/kg/day based on increased liver weights and incidences of ground glass appearance of the hepatocytes in males.

      Intermediate-Term Dermal

      Dermal (or oral) study LOC for MOE = 1,000 2-Generation (1 week to several months)........... NOAEL = 5.45 mg/kg/day (Residential).......... Reproduction Study in (Residential)........................

      Rats LOAEL = 89.2 mg/kg/day based on decreased absolute brain weight in female F1 adults and females F2 offspring.

      Long-Term Dermal

      Dermal (or oral) study LOC for MOE = 1,000 2-Year Chronic Toxicity/ (Several months to lifetime)......... NOAEL= 2.83 mg/kg/day (Residential).......... Carcinogenicity Study (Residential)........................

      in Rats LOAEL = 7.07/9.24 mg/kg/ day M/F based on increase in severity of diffuse thyroid C- cell hyperplasia in both sexes.

      Short-Term Inhalation

      Inhalation (or oral) LOC for MOE = 1,000 90-Day Feeding Study in (1 to 7 days)........................ study NOAEL= 10.4 mg/ (Residential).......... Rats (Residential)........................ kg/day (inhalation

      LOAEL = 68.27 mg/kg/day absorption rate =

      based on increased 100%)

      liver weights and incidences of ground glass appearance of the hepatocytes in males.

      Intermediate-Term Inhalation

      Inhalation (or oral) LOC for MOE = 1,000 2-Generation (1 week to several months)........... study NOAEL = 5.45 mg/ (Residential).......... Reproduction Study in (Residential)........................ kg/day (inhalation

      Rats absorption rate =

      LOAEL = 89.2 mg/kg/day 100%)

      based on decreased absolute brain weight in female F1 adults and female F2 offspring.

      Long-Term Inhalation

      Inhalation (or oral) LOC for MOE = 1,000 2-Year Chronic Toxicity/ (Several months to lifetime)......... study NOAEL= 2.83 mg/ (Residential).......... Carcinogenicity Study (Residential)........................ kg/day (inhalation

      in Rats absorption rate =

      LOAEL = 7.07/9.24 mg/ 100%)

      kg/day M/F based on increase in severity of diffuse thyroid C- cell hyperplasia in both sexes.

      Cancer

      Classification: ``Not (Oral, dermal, inhalation)........... likely''

      [[Page 58061]]

    3. Exposure Assessment

      1. Dietary exposure from food and feed uses. Tolerances have been established (40 CFR 180.579) for residues of fenamidone, in or on head and leaf lettuce. Risk assessments were conducted by EPA to assess dietary exposures from fenamidone in food as follows:

      i. Acute exposure. 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.

      In conducting the acute dietary risk assessment EPA used the Dietary Exposure Evaluation Model software with the Food Commodity Intake Database (DEEM-FCID\TM\), which incorporates food consumption data as reported by respondents in the U.S. Department of Agriculture 1994-1996 and 1998 Nationwide Continuing Surveys of Food Intake by Individuals (CSFII), and accumulated exposure to the chemical for each commodity. The following assumptions were made for the acute exposure assessments: The acute analysis assumed 100% crop treated and field trial residue data treated at maximum labeled rate, minimum preharvest interval. Therefore, the acute analysis is considered conservative. The results, reported in Unit III.E. are for the general U.S. population, all infants (DBfor lack of a (DNT) study; 10X for interspecies extrapolation; and 10x for intraspecies variation) were incorporated into the acute and chronic RfD . The reference dose (RfD) for acute and chronic risks from fenamidone is equal to the applicable NOAEL divided by the 1000x uncertainty factor.

    4. Aggregate Risks and Determination of Safety

      To estimate total aggregate exposure to a pesticide from food, drinking water, and residential uses, the Agency calculates DWLOCs which are used as a point of comparison against EECs. DWLOC values are not regulatory standards for drinking water. DWLOCs are theoretical upper limits on a pesticide's concentration in drinking water in light of total aggregate exposure to a pesticide in food and residential uses. In calculating a DWLOC, the Agency determines how much of the acceptable exposure (i.e., the PAD) is available for exposure through drinking water [e.g., allowable chronic water exposure (mg/kg/day) = cPAD - (average food + residential exposure). This allowable exposure through drinking water is used to calculate a DWLOC.

      A DWLOC will vary depending on the toxic endpoint, drinking water consumption, and body weights. Default body weights and consumption values as used by the EPA's Office of Water are used to calculate DWLOCs: 2 liter (L)/70 kg (adult male), 2L/60 kg (adult female), and 1L/10 kg (child). Default body weights and drinking water consumption values vary on an individual basis. This variation will be taken into account in more refined screening-level and quantitative drinking water exposure assessments. Different populations will have different DWLOCs. Generally, a DWLOC is calculated for each type of risk assessment used: Acute, short-term, intermediate-term, chronic, and cancer.

      When EECs for surface water and ground water are less than the calculated DWLOCs, OPP concludes with reasonable certainty that exposures to the pesticide in drinking water (when considered along with other sources of exposure for which OPP has reliable data) would not result in unacceptable levels of aggregate human health risk at this time. Because OPP considers the aggregate risk resulting from multiple exposure pathways associated with a pesticide's uses, levels of comparison in drinking water may vary as those uses change. If new uses are added in the future, OPP will reassess the potential impacts of residues of the pesticide in drinking water as a part of the aggregate risk assessment process.

      1. Acute risk. Using the exposure assumptions discussed in this unit for acute exposure, the acute dietary exposure from food to fenamidone the highest exposed population subgroup was children 1-2 years old which accounted for 24% of the aPAD. The acute aggregate risk associated with the proposed use of fenamidone does not exceed the Agency's level of concern for the general U.S. population or any population subgroups.. In addition, there is potential for acute dietary exposure to fenamidone in drinking water. After calculating DWLOCs and comparing them to the EECs for surface and ground water, EPA does not expect the aggregate exposure to exceed 100% of the aPAD, as shown in Table 3 of this unit:

        Table 3.--Aggregate Risk Assessment for Acute Exposure to Fenamidone

        Surface Water EEC Ground Water EEC Population Subgroup

        aPAD (mg/kg)

        % aPAD (Food DEEM)

        (ppb)

        (ppb)

        Acute DWLOC (ppb)

        General U.S. population

        0.13

        16%

        10.47

        8.19

        3800

        Children 1-2 yearsold

        0.13

        24%

        10.47

        8.19

        990

        Youth 13-19 yearsold

        0.13

        15%

        10.47

        8.19

        330

        Adults 20-49 yearsold

        0.13

        17%

        10.47

        8.19

        3800

        Females 13-49 years old

        0.13

        17%

        10.47

        8.19

        3200

      2. Maximum water exposure (mg/kg/day) = aPAD (mg/kg/day) - food exposure (mg/kg/day). 2. The crop producing the highest level was used. 3. DWLOC calculated as follows: DWLOC = (maximum water exposure (mg/kg/day)) x (body weight (kg)) x (1,000 [mu]g (gram)/mg) / water consumption (L/day)

      3. Chronic risk. Using the exposure assumptions described in this unit for chronic exposure, EPA has concluded that the chronic dietary exposure analysis was partially refined through the use of projected PCT estimates and average field trial residues. Since the chronic analysis assumed that all meat/milk commodities will contain fenamidone residues (i.e. no adjustment for feed PCT) and since the analysis made use of field trial residues (treated at maximum labeled rate, minimum preharvest interval, samples frozen upon collection and remained frozen until analysis), EPA concludes that the chronic exposure estimates are conservative. The highest exposed population subgroup was children 1-2 years old which occupies 69% of the cPAD. There are no residential uses for fenamidone that result in chronic residential exposure to fenamidon. EPA does not expect the aggregate exposure to exceed 100% of the cPAD, as shown in Table 4 of this unit:

        Table 4.--Aggregate Risk Assessment for Chronic (Non-Cancer) Exposure to Fenamidone

        Surface Water EEC Ground Water EEC Population Subgroup

        cPAD mg/kg/day

        %cPAD (Food)

        (ppb)

        (ppb)

        Chronic DWLOC (ppb)

        U.S. population

        0.003

        29%

        2.58

        8.19

        74

        [[Page 58064]]

        Children 1-2 years old

        0.003

        69%

        2.58

        8.19

        9.2

        Youth 13-19 years old

        0.003

        26%

        2.58

        8.19

        67

        Adults 20-49 years old

        0.003

        26%

        2.58

        8.19

        78

        Females 13-49 years old

        0.003

        26%

        2.58

        8.19

        67

      4. Short-term risk. Short-term risk assessment was not performed because there are no existing or proposed residential uses for fenamidone.

        Fenamidone is not registered for use on any sites that would result in residential exposure. Therefore, the aggregate risk is the sum of the risk from food and water, which do not exceed the Agency's level of concern.

      5. Intermediate-term risk. Intermediate-term risk assessment was not performed because there are no existing or proposed residential uses for fenamidone.

        Intermediate-term aggregate exposure takes into account residential exposure plus chronic exposure to food and water (considered to be a background exposure level).

        Fenamidone is not registered for use on any sites that would result in residential exposure. Therefore, the aggregate risk is the sum of the risk from food and water, which do not exceed the Agency's level of concern.

      6. Aggregate cancer risk for U.S. population. A cancer aggregate risk assessment was not performed because fenamidone is not considered to be carcinogenic.

      7. Determination of safety. Based on these risk assessments, EPA concludes that there is a reasonable certainty that no harm will result to the general population, and to infants and children from aggregate exposure to fenamidone residues.

  4. Other Considerations

    1. Analytical Enforcement Methodology

      The registrant has proposed a liquid chromatograph/mass spectroscopy (LC/MS) method for the enforcement of the plant tolerances (the method does not distinguish the S- and R-enantiomers). Adequate method validation, radiovalidation, and independent method validation (ILV) of the proposed enforcement method have been submitted.

      The Agency concludes that livestock tolerances are necessary. The petitioner has proposed a livestock enforcement method and submitted an ILV for this method. The Agency notes that methods AR 200-99 (milk) and AR 178-98 (tissue) have been adequately radiovalidated for the determination of fenamidone, RPA 717879, and RPA 408056. An ILV study has been submitted for the livestock enforcement method and it indicates that the method is satisfactory for enforcement purposes.

      Adequate enforcement methodology is available to enforce the tolerance expression. The method may be requested from: Chief, Analytical Chemistry Branch, Environmental Science Center, 701 Mapes Rd., Ft. Meade, MD 20755-5350; telephone number: (410) 305-2905; e-mail address: residuemethods@epa.gov.

    2. International Residue Limits

      There are currently no established Codex, Canadian, or Mexican maximum residue limits (MRLs) for fenamidone in/on requested crops; therefore, harmonization is not an issue for this petition.

    3. Conditions

      1. Toxicity data requirements. A DNT study in rats is required. The Agency concluded that the DNT was required based on the following:

        i. Clinical signs of neurotoxicity were seen in the mutagenicity studies with parent and plant metabolites, particularly RPA 412636 and RPA 412708.

        ii. In the acute neurotoxicity study in rats, decreased brain weight in male rats was observed.

        iii. In the 2-generation reproduction study in rats, decreased absolute brain weight was observed in the female F1 adults and the female F2 offspring.

        The Agency reassessed the requirement for a DNT study in rats for fenamidoene in response to the waiver request by Bayer CropSciences.

      2. Residue chemistry data requirements--i. The Agency is requesting that the petitioner hydrolyze the extractable and non extractable residues from the N-phenyl studies to determine if conjugated aniline(s) are present (data validating the storage interval are also required).

        ii. The Agency is also requiring additional identification/ characterization on the N-phenyl livestock samples to determine the metabolic fate of the N-phenyl ring in livestock (data validating the storage interval are also required).

        iii. Submission of storage stability data for confined accumulation in rotational crop study.

  5. Conclusion

    Therefore, the tolerance is established for residues of fenamidone, 4H-imidazol-4-one, 3,5-dihydro-5-methyl-2-(methylthio)-5-phenyl-3- (phenylamino), (S)-, in or on garlic, bulb at 0.20 ppm; garlic, great headed at 0.20 ppm; grape (imported) at 1.0 ppm, leek at 1.5 ppm, onion, dry bulb at 0.20 ppm; onion, green at 1.5 ppm; onion, welsh at 1.5 ppm; shallot, bulb at 0.20 ppm; shallot, fresh leaves at 1.5 ppm; tomato at 1.0 ppm; tomato, paste at 2.2 ppm; tomato, puree at 2.0 ppm; vegetable, cucurbit, group 09 at 0.15 ppm and vegetable, tuberous and corm, subgroup 01C at 0.02 ppm and also for the combined residues of fenamidone (4H-imidazol-4-one, 3,5-dihydro-5-methyl-2-(methylthio)-5- phenyl-3-(phenylamino), (S)-) and its metabolite RPA 717879 (2,4- imidazolidinedione, 5-methyl-5-phenyl) in or on fat (beef, goat, and sheep) at 0.10 ppm; meat (beef, goat, and sheep) at 0,10 ppm., meat byproducts (beef, goat, and sheep) at 0.10 ppm; milk at 0.02 ppm; wheat forage at 0.15 ppm; wheat, grain at 0.10 ppm; wheat, hay at 0.50 ppm; wheat, straw at 0.35 ppm.

  6. Objections and Hearing Requests

    Under section 408(g) of FFDCA, as amended by 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 FFDCA by FQPA, EPA will continue to use those procedures, with appropriate

    [[Page 58065]]

    adjustments, until the necessary modifications can be made. The new section 408(g) of FFDCA 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) of FFDCA, as was provided in the old sections 408 and 409 of FFDCA. However, the period for filing objections is now 60 days, rather than 30 days.

    1. 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 ID number OPP-2004-0255 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 November 29, 2004.

      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 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.

        Mail your written request to: Office of the Hearing Clerk (1900L), Environmental Protection Agency, 1200 Pennsylvania Ave., NW., Washington, DC 20460-0001. You may also deliver your request to the Office of the Hearing Clerk in Suite 350, 1099 14\th\ St., NW., Washington, DC 20005. 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) 564-6255.

      2. Copies for the Docket. In addition to filing an objection or hearing request with the Hearing Clerk as described in Unit VI.A., you should also send a copy of your request to the PIRIB for its inclusion in the official record that is described in ADDRESSES. Mail your copies, identified by docket ID number OPP-2004-0255, to: Public Information and Records Integrity Branch, Information Resources and Services Division (7502C), Office of Pesticide Programs, Environmental Protection Agency, 1200 Pennsylvania Ave., NW., Washington, DC 20460- 0001. In person or by courier, bring a copy to the location of the PIRIB described in ADDRESSES. 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 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.

    2. 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).

  7. Statutory and Executive Order Reviews

    This final rule establishes a tolerance under section 408(d) of FFDCA in response to a petition submitted to the Agency. 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). Because this rule has been exempted from review under Executive Order 12866 due to its lack of significance, this rule is not subject to Executive Order 13211, entitled Actions Concerning Regulations That Significantly Affect Energy Supply, Distribution, or Use (66 FR 28355, May 22, 2001). 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 special considerations under Executive Order 12898, entitled Federal Actions to Address Environmental Justice in Minority Populations and Low-Income Populations (59 FR 7629, February 16, 1994); or 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 petition under section 408(d) of FFDCA, 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 section 408(n)(4) of FFDCA. For these same reasons, the Agency has determined that this rule does not have any ``tribal implications'' as described in Executive Order 13175, entitled Consultation and Coordination with Indian Tribal Governments (65 FR 67249, November 6, 2000). Executive Order 13175, requires EPA to develop an accountable process to ensure ``meaningful and timely input by tribal officials in the development of

    [[Page 58066]]

    regulatory policies that have tribal implications.'' ``Policies that have tribal implications'' is defined in the Executive order to include regulations that have ``substantial direct effects on one or more Indian tribes, on the relationship between the Federal Government and the Indian tribes, or on the distribution of power and responsibilities between the Federal Government and Indian tribes.'' This rule will not have substantial direct effects on tribal governments, on the relationship between the Federal Government and Indian tribes, or on the distribution of power and responsibilities between the Federal Government and Indian tribes, as specified in Executive Order 13175. Thus, Executive Order 13175 does not apply to this rule.

  8. Congressional Review Act

    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).

    List of Subjects in 40 CFR Part 180

    Environmental protection, Administrative practice and procedure, Agricultural commodities, Pesticides and pests, Reporting and recordkeeping requirements.

    Dated: September 21, 2004. Lois Rossi, 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), 346a and 371.

    2. Section 180.579 is amended by designating the text of paragraph (a) as paragraph (a)(1) and alphabetically adding new commodities to the table in paragraph (a)(1) and by adding new paragraph (a)(2) and text to paragraph (d) to read as follows:

      Sec. 180.579 Fenamidone; tolerances for residues.

      (a) * * *

      (1) Tolerances are established for residues of fenamidone (4H- imidazol-4-one, 3,5-dihydro-5-methyl-2-(methylthio)-5-phenyl-3- (phenylamino), (S)-) from the application of the fumgicide fenamidone in or on the following raw agricultural commodities:

      Parts per Commodity

      million

      garlic, bulb...............................................

      0.20 garlic, great headed.......................................

      0.20 Grape (imported)...........................................

      1.0 Leek.......................................................

      1.5 * * * * * Onion, dry bulb............................................

      0.20 Onion, green...............................................

      1.5 Onion, welsh...............................................

      1.5 Shallot, bulb..............................................

      0.20 Shallot, fresh leaves......................................

      1.5 Tomato....................................................

      1.0 Tomato, paste..............................................

      2.2 Tomato, puree..............................................

      2.0 Vegetable, cucurbit, group 09..............................

      0.15 Vegetable, tuberous and corm, subgroup 01C.................

      0.02

      (2) Tolerances are established for the combined residues of fenamidone (4H-imidazol-4-one, 3,5-dihydro-5-methyl-2-(methylthio)-5- phenyl-3-(phenylamino), (S)-) and its metabolite RPA 717879 (2,4- imidazolidinedione, 5-methyl-5-phenyl), expressed as parent compound, in or on the following commodities:

      Parts per Commodity

      million

      beef, fat..................................................

      0.10 beef, meat.................................................

      0.10 beef, meat byproducts......................................

      0.10 goat, fat..................................................

      0.10 goat, meat.................................................

      0.10 goat, meat byproducts......................................

      0.10 milk.......................................................

      0.02 sheep, fat.................................................

      0.10 sheep, meat................................................

      0.10 sheep, meat byproduct......................................

      0.10

      * * * * *

      (d) Indirect or inadvertent residues. Tolerances are established for residues of the fungicide fenamidone (4-H-imidazol-4-one, 3,5- dihydro-5-methyl-2-(methlthio)-5-phenyl-3-(phenylamino, (S)-) and its metabolite RPA 717879 (2,4-imidazolidinedione, 5-methyl-5-phenyl) in or on the following agricultural commodities when present therein as a result of application of fenamidone to the crops in paragraph (a)(1).

      Parts per Commodity

      million

      Wheat, grain...............................................

      0.10 Wheat, hay.................................................

      0.50 Wheat, forage..............................................

      0.15 Wheat, straw...............................................

      0.35

      [FR Doc. 04-21694 Filed 9-28-04; 8:45 am]

      BILLING CODE 6560-50-S

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