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OPP ID: [OPP-2003-0034; FRL-7291-3]
SUBJECT CATEGORY: Imazamox; Exemption from the Requirement of a Tolerance
DOCUMENT SUMMARY: This regulation establishes an exemption from the requirement of a tolerance for residues of the imazamox on all food commodities when applied/used as a herbicide. The Interregional Research Project Number 4 (IR4) submitted a petition to EPA under the Federal Food, Drug, and Cosmetic Act, as amended by the Food Quality Protection Act of 1996, requesting an exemption from the requirement of a tolerance. After review of the available data, EPA determined that the toxicological profile for imazamox supports an exemption from the requirement of a tolerance; no adverse effects were observed in the submitted toxicological studies regardless of the route of exposure. Since this regulation eliminates the need to establish maximum permissible levels for residues of imazamox, the Agency is also deleting 40 CFR 180.508, which includes previously established maximum permissible levels for residues of imazamox.
SUMMARY: Imazamox,
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: [sbull] Crop production
[sbull] Animal production
[sbull] Food manufacturing
This listing is not intended to be exhaustive, but rather provides
a guide for readers regarding entities likely to be affected by this
action. Other types of entities not listed in this unit could also be affected. The North American
[[Page 7429]]
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.
B. How Can I Get Copies of this Document and Other Related Information?
1. Docket. EPA has established an official public docket for this
action under docket identification (ID) number OPP20030034. The
official public docket consists of the documents specifically
referenced in this action, any public comments received, and other
information related to this action. Although a part of the official
docket, the public docket does not include Confidential Business
Information (CBI) or other information whose disclosure is restricted
by statute. The official public docket is the collection of materials
that is available for public viewing at the Public Information and
Records Integrity Branch (PIRIB), Rm. 119, Crystal Mall
2. Electronic access. 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 at http://www.access.gpo.gov/nara/cfr/cfrhtml_00/Title_40/40cfr180_00.html , a
beta site currently under development. To access the OPPTS Harmonized
Guidelines referenced in this document, go directly to the guidelines
at http://www.epa.gov/opptsfrs/home/guidelin.htm.
An electronic version of the public docket is available through EPA's electronic public docket and comment system, EPA Dockets. You may use EPA Dockets at http://www.epa.gov/edocket/ to submit or view public comments, access the index listing of the contents of the official public docket, and to access those documents in the public docket that are available electronically. Although not all docket materials may be available electronically, you may still access any of the publicly available docket materials through the docket facility identified in Unit I.B.1. Once in the system, select ``search,'' then key in the appropriate docket ID number.
In the Federal Register of December 23, 2002 (67 FR 78229) (FRL 72845), EPA issued a notice pursuant to section 408 of the Federal Food, Drug, and Cosmetic Act (FFDCA), 21 U.S.C. 346a, as amended by the Food Quality Protection Act (FQPA) (Public Law 104170), announcing the filing of a pesticide tolerance petition (PP 2E6472) by BASF Corporation, 26 Davis Drive, Research Triangle Park, NC 27709. This notice included a summary of the petition prepared by BASF Corporation. There were no comments received in response to the notice of filing.
The petition requested that 40 CFR part 180 be amended by
establishing an exemption from the requirement of a tolerance for residues of imazamox (2[4,5dihydro4(1methylethyl)5oxo1H
imidazol2yl]5methoxymethyl3pyridinecarboxylic acid) in or on all food commodities.
Section 408(b)(2)(A)(i) of the FFDCA allows EPA to establish an exemption from the requirement for 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. * * *''
EPA performs a number of analyses to determine the risks from aggregate exposure to pesticide residues. First, EPA determines the toxicity of pesticides. Second, EPA examines exposure to the pesticide through food, drinking water, and through other exposures that occur as a result of pesticide use in residential settings.
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 and considered its validity, completeness and reliability
and the relationship of this information 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 imazamox are discussed in this unit.
Table 1.Subchronic, Chronic, and Other Toxicity
Guideline No. Study Type Results
870.3100 90Day oral NOAEL = 1661
toxicity rodents milligram/
kilogram/day (mg/
kg/day), highest
dose tested (HDT)
There were no
treatmentrelated
effects observed
in this study.
870.3150 90Day oral NOAEL = 1.3 gram/
toxicity in kilogram/day (g/
nonrodents kg/day) (HDT)
There were no
treatmentrelated
effects observed
in this study.
870.3200 21/28Day dermal NOAEL = 1000 mg/kg/
toxicity day (HDT)
There were no
observed toxic
effects at any
dose level.
870.3700a Prenatal Maternal NOAEL = >
developmental in 1000 mg/kg/day
rodents (rat) (limit dose) [[Page 7430]]
No maternal
toxicity or
clinical signs of
toxicity were
observed. Mean
body weight gain
was reduced
during the early
dosing periods
(days 612) at
the 1000 mg/kg/
day dose compared
to the control
group. Body
weights were
comparable
between the
treated and the
control groups
for the remainder
of the dosage
period (days 12
16) and the post
dosage period
(days 16 to 20).
Slightly reduced
mean body weight
gain observed
during early
dosing period
(days 612) was
not considered
biologically
relevant.
Developmental
NOAEL = equal to
or greater than
1000 mg/kg/day.
No treatment
related fetal
gross external,
visceral or
skeletal
malformations or
variations were
seen at any dose
level.
870.3700b Prenatal Maternal NOAEL =
developmental in 900 mg/kg/day
nonrodents (HDT) (rabbit)
Marginally reduced
body weights and
slightly
decreased food
consumption in F1
males and females
were observed in
in test animals
at the 900 mg/kg/
day dose level,
but were not
considered
biologically
significant.
Developmental
NOAEL = equal to
or greater than
900 mg/kg/day
(HDT)
There were no
treatmentrelated
developmental
effects observed
at any of the
administered dose
levels.
870.3800 Reproduction and Parental/Systemic
fertility effects NOAEL = 1469 mg/
kg/day in males/
1705 mg/kg/day in
females (HDT)
There were no
treatmentrelated
systemic or
reproductive
toxicity observed
at any of the
administered dose
levels.
870.4100b Chronic toxicity NOAEL = 1,165 mg/
dogs kg/day (HDT)
There were no
treatmentrelated
effects observed
at any of the
administered dose
levels.
870.4200 Carcinogenicity NOAEL = 1,068 mg/
rats kg/day in males/
1,284 mg/kg/day
in females (HDT)
There were no
treatmentrelated
effects observed
in this study.
There was no
evidence of
carcinogenicity
in rats treated
with imazamox in
the diet for 24
months. The
highest dose
tested (1,068/
1,284 mg/kg/day)
is considered an
adequate upper
limit for this
study.
870.4300 Carcinogenicity NOAEL = 1,053 mg/
mice kg/day for males
(HDT)/1,348 mg/kg/
day for females
(HDT)
There were no
treatmentrelated
effects observed
in this study.
There was no
evidence of
carcinogenicity
in mice treated
with imazamox in
the diet for 24
months. The
highest dose
tested (1,053/
1,348 mg/kg/day)
is considered an
adequate upper
limit for this
study.
870.5100 Gene Mutation Negative
870.5375 Cytogenetics Negative
870.5385 Other Effects Negative
870.7485 Metabolism and [\14\]CImazamox
pharmacokinetics was readily
absorbed by male
and female rats
following
intravenous or
oral dosing.
Imazamox was
rapidly excreted
as the unchanged
parent compound,
primarily in the
urine following
intravenous
administration
and in the urine
and feces
following oral
administration. IV. 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. Based on a review of the available data, EPA concluded that imazamox showed no toxicological endpoints of concern and, therefore, no dietary, occupational, residential, or aggregate risk assessments are needed. [[Page 7431]]
In examining aggregate exposure, FFDCA section 408 directs EPA to consider available information concerning exposures from the pesticide residue in food and all other nonoccupational exposures, including drinking water from ground water or surface water and exposure through pesticide use in gardens, lawns, or buildings (residential and other indoor uses).
1. Dietary exposure from food and feed uses. Tolerances have been established (40 CFR 180.508) for residues of imazamox, per se, in or on canola and the legume vegetable group; imazamox and its metabolite AC263284 in or on wheat (bran, germ, grain, forage, hay, shorts, and straw); and imazamox and its metabolites AC26284 and AC312622 in or on alfalfa (seed, forage and hay). Timelimited tolerances for section 18 emergency exemptions are established for dry bean and canola. Section 180.508, which lists the maximum permissible levels for imazamox, will be removed since this regulation eliminates the need to establish maximum permissible levels for residues of the pesticide.
i. Acute exposure. Acute dietary risk assessments are performed for a fooduse pesticide if a toxicological study has indicated the possibility of an effect of concern occurring as a result of a one day or single exposure. EPA concluded that no acute toxicological endpoint was identified from the toxicological studies submitted for imazamox, including oral developmental toxicity studies in rats and rabbits. Therefore, an acute dietary risk assessment was not conducted.
ii. Chronic exposure. EPA concluded that a chronic dietary risk assessment is not needed since no toxicity was observed at doses exceeding the LimitDose (1,000 mg/kg/day and higher) in chronic and subchronic studies in mice, rats, and dogs. A dose of 1,000 mg/kg/day is equivalent to a human diet in which the pesticide comprises approximately 7 percent of dietary consumption.
iii. Cancer. Imazamox is classified as a ``not likely human carcinogen'' based on the lack of evidence of carcinogenicity in mice and rats. Therefore a cancer risk assessment was not performed.
2. Drinking water exposure. The Agency lacks sufficient monitoring exposure data to complete a comprehensive dietary exposure analysis and risk assessment for imazamox in drinking water. Because the Agency does not have comprehensive monitoring data, drinking water concentration estimates are made by reliance on simulation or modeling taking into account data on the physical characteristics of imazamox.
The Agency uses the First Index Reservoir Screening Tool (FIRST) or the Pesticide Root Zone/Exposure Analysis Modeling System (PRZM/EXAMS), to produce estimates of pesticide concentrations in an index reservoir. The SCIGROW model is used to predict pesticide concentrations in shallow groundwater. For a screeninglevel assessment for surface water EPA will use FIRST (a tier 1 model) before using PRZM/EXAMS (a tier 2 model). The FIRST model is a subset of the PRZM/EXAMS model that uses a specific highend runoff scenario for pesticides. While both FIRST and PRZM/EXAMS incorporate an index reservoir environment, the PRZM/EXAMS model includes a percent crop area factor as an adjustment to account for the maximum percent crop coverage within a watershed or drainage basin.
None of these models include consideration of the impact processing (mixing, dilution, or treatment) of raw water for distribution as drinking water would likely have on the removal of pesticides from the source water. The primary use of these models by the Agency at this stage is to provide a coarse screen for sorting out pesticides for which it is highly unlikely that drinking water concentrations would ever exceed human health levels of concern.
Based on the FIRST and SCIGROW models the estimated environmental concentrations (EECs) for imazamox for acute exposures are estimated to be 5.7 parts per billion (ppb) for surface water and 1.0 ppb for ground water. The EECs for chronic exposures are estimated to be 0.61 ppb for surface water and 1.0 ppb for ground water.
The term ``residential exposure'' is used in this document to refer to nonoccupational, nondietary exposure (e.g., for lawn and garden pest control, indoor pest control, termiticides, and flea and tick control on pets). Imazamox is not registered or proposed for use on any sites that would result in residential exposure.
Section 408(b)(2)(D)(v) of the FFDCA 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 imazamox 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,
imazamox 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 imazamox has a common mechanism of toxicity
with other substances. For information regarding EPA's efforts to
determine which chemicals have a common mechanism of toxicity and to
evaluate the cumulative effects of such chemicals, see the final rule
for Bifenthrin Pesticide Tolerances (62 FR 62961, November 26, 1997) (FRL57547).
VII. Determination of Safety for U.S. Population, Infants and Children
1. U.S. Population. The toxicological profile for imazamox supports a tolerance exemption since no adverse effects were observed in the submitted toxicological studies regardless of the route of exposure. EPA does not expect imazamox to pose a dietary risk under reasonable foreseeable circumstances and, thus, EPA concludes that there is a reasonable certainty of no harm from aggregate exposure to imazamox residues. Accordingly, EPA finds that exempting imazamox from the requirement of a tolerance will be safe.
2. Infants and children. Section 408 of the FFDCA 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 on toxicity and exposure 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 MOE analysis or through using uncertainty (safety) factors in calculating a dose level that poses no appreciable risk to humans.
EPA concludes there is a complete toxicity data base for imazamox
and there is no evidence of prenatal or postnatal toxicity to rat or
rabbit fetuses following in utero exposure in the developmental studies
or to young rats in the reproduction study. Due to the lack of toxicity in the animal studies,
[[Page 7432]]
EPA did not use a margin of exposure (safety) approach to assess the
safety of imazamox. For this same reason, an additional margin of
safety is not needed for infants and children. The Agency concludes
that an exemption from the requirement of a tolerance for imazamox will be safe for infants and children.
VIII. Other Considerations
An analytical method for enforcement purposes is not required, this action eliminates the need for maximum permissible levels for residues of imazamox in or on food commodities.
Tolerances are established (40 CFR 180.508) for residues of imazamox, per se, in or on canola and the legume vegetable group; imazamox and its metabolite AC263284 in or on wheat (bran, germ, grain, forage, hay, shorts, and straw); and imazamox and its metabolites AC26284 and AC312622 in or on alfalfa (seed, forage and hay). Time limited tolerances for section 18 emergency exemptions are established for dry bean and canola. Section 180.508 will be removed since this regulation eliminates the need for maximum permissible levels for residues of the pesticide.
There are no established or proposed Codex Maximum Residue Limits (MRLs) for imazamox.
Under section 408(g) of the FFDCA, as amended by the FQPA, any
person may file an objection to any aspect of this regulation and may
also request a hearing on those objections. The EPA procedural
regulations which govern the submission of objections and requests for
hearings appear in 40 CFR part 178. Although the procedures in those
regulations require some modification to reflect the amendments made to
the FFDCA by the FQPA of 1996, EPA will continue to use those
procedures, with appropriate adjustments, until the necessary
modifications can be made. The new section 408(g) provides essentially
the same process for persons to ``object'' to a regulation for an
exemption from the requirement of a tolerance issued by EPA under new
section 408(d), as was provided in the old FFDCA sections 408 and 409.
However, the period for filing objections is now 60 days, rather than 30 days.
A. What Do I Need to Do to File an Objection or Request a Hearing?
You must file your objection or request a hearing on this regulation in accordance with the instructions provided in this unit and in 40 CFR part 178. To ensure proper receipt by EPA, you must identify docket ID number OPP20030034 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 April 15, 2003.
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 (1900C),
Environmental Protection Agency, 1200 Pennsylvania Ave., NW.,
Washington, DC 204600001. You may also deliver your request to the
Office of the Hearing Clerk in Rm.104, Crystal Mall
2. Tolerance fee payment. If you file an objection or request a hearing, you must also pay the fee prescribed by 40 CFR 180.33(i) or request a waiver of that fee pursuant to 40 CFR 180.33(m). You must mail the fee to: EPA Headquarters Accounting Operations Branch, Office of Pesticide Programs, P.O. Box 360277M, Pittsburgh, PA 15251. Please identify the fee submission by labeling it ``Tolerance Petition Fees.''
EPA is authorized to waive any fee requirement ``when in the judgement of the Administrator such a waiver or refund is equitable and not contrary to the purpose of this subsection.'' For additional information regarding the waiver of these fees, you may contact James Tompkins by phone at (703) 3055697, by email at tompkins.jim@epa.gov, or by mailing a request for information to Mr. Tompkins at Registration Division (7505C), Office of Pesticide Programs, Environmental Protection Agency, 1200 Pennsylvania Ave., NW., Washington, DC 20460 0001.
If you would like to request a waiver of the tolerance objection fees, you must mail your request for such a waiver to: James Hollins, Information Resources and Services Division (7502C), Office of Pesticide Programs, Environmental Protection Agency, 1200 Pennsylvania Ave., NW., Washington, DC 204600001.
3. Copies for the Docket. In addition to filing an objection or hearing request with the Hearing Clerk as described in Unit IX.A., you should also send a copy of your request to the PIRIB for its inclusion in the official record that is described in Unit I.B.1. Mail your copies, identified by docket ID number OPP20030034, 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 Unit I.B.1. You may also send an electronic copy of your request via email to: oppdocket@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. B. When Will the Agency Grant a Request for a Hearing?
A request for a hearing will be granted if the Administrator determines that the material submitted shows the following: There is a genuine and substantial issue of fact; there is a reasonable possibility that available evidence identified by the requestor would, if established resolve one or more of such issues in favor of the requestor, taking into account uncontested claims or facts to the contrary; and resolution of the factual issues(s) in the manner sought by the requestor would be adequate to justify the action requested (40 CFR 178.32).
This final rule establishes an exemption from the tolerance [[Page 7433]]
requirement under FFDCA section 408(d) 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, 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 1044). Nor
does it require any special considerations under Executive Order 12898,
entitled Federal Actions to Address Environmental Justice in Minority
Populations and LowIncome 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 104113, section 12(d) (15 U.S.C. 272 note). Since
tolerances and exemptions that are established on the basis of a
petition under FFDCA section 408(d), such as the exemption in this
final rule, do not require the issuance of a proposed rule, the
requirements of the Regulatory Flexibility Act (RFA) (5 U.S.C. 601 et
seq.) do not apply. In addition, the Agency has determined that this
action will not have a substantial direct effect on States, on the
relationship between the national government and the States, or on the
distribution of power and responsibilities among the various levels of
government, as specified in Executive Order 13132, entitled Federalism
(64 FR 43255, August 10, 1999). Executive Order 13132 requires EPA to
develop an accountable process to ensure ``meaningful and timely input
by State and local officials in the development of regulatory policies
that have federalism implications.'' ``Policies that have federalism
implications'' is defined in the Executive order to include regulations
that have ``substantial direct effects on the States, on the
relationship between the national government and the States, or on the
distribution of power and responsibilities among the various levels of
government.'' This final rule directly regulates growers, food
processors, food handlers, and food retailers, not States. This action
does not alter the relationships or distribution of power and
responsibilities established by Congress in the preemption provisions
of FFDCA section 408(n)(4). 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 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.
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: February 4, 2003.
Debra Edwards,
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.
Sec. 180.508 [Removed]
2. Section 180.508 is removed.
3. Section 180.1223 is added to subpart D to read as follows: Sec. 180.1223 Imazamox; exemption from the requirement of a tolerance.
The herbicide imazamox, (+/) 2, [4,5dihydro4methyl4(1 methylethyl)5oxo1Himidazol2yl]5(methoxymethyl)3
pyridinecarboxylic acid, is exempt from the requirement of a tolerance
on all food commodities when applied as a herbicide in accordance with good agricultural practices.
[FR Doc. 033699 Filed 21303; 8:45 am]
BILLING CODE 656050S
FOR FURTHER INFORMATION CONTACT Hoyt Jamerson, Registration Division (7505C), Office of Pesticide Programs, Environmental Protection Agency, 1200 Pennsylvania Ave., NW., Washington, DC 204600001; telephone number: (703) 3089368; email address: jamerson.hoyt@epa.gov.
14 CFR Part 39 40 CFR Part 52 14 CFR Part 71 33 CFR Part 165 50 CFR Part 679 47 CFR Part 73 26 CFR Part 1 40 CFR Part 180 33 CFR Part 117 50 CFR Part 17 44 CFR Part 67 50 CFR Part 648 14 CFR Part 97 33 CFR Part 100 40 CFR Part 63 50 CFR Part 622 44 CFR Part 65 50 CFR Part 660 26 CFR Part 301 39 CFR Part 111 40 CFR Part 300 6 CFR Part 5 40 CFR Part 271 47 CFR Part 64 40 CFR Parts 52 and 81 50 CFR Part 665 44 CFR Part 64 10 CFR Part 50 49 CFR Part 571 47 CFR Part 76