[Federal Register Volume 80, Number 23 (Wednesday, February 4, 2015)]
[Notices]
[Pages 6072-6073]
[FR Doc No: 2015-02117]

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DEPARTMENT OF ENERGY

Federal Energy Regulatory Commission

[Docket No. EL00-95-281]

San Diego Gas & Electric Company v. Sellers of Energy and
Ancillary Services Into Markets Operated by the California Independent
System Operator Corporation and the California Power Exchange; Notice
of Compliance Filing

    Take notice that on January 23, 2015, Hafslund Energy Trading LLC
submitted a compliance filing pursuant to the Commission's Opinion No.
536.\1\
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    \1\ San Diego Gas & Elec. Co. v. Sellers of Energy and Ancillary
Services Into Markets Operated by the California Independent System
Operator and the California Power Exchange., 149 FERC ] 61,116
(2014) (Opinion No. 536).
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    Any person desiring to intervene or to protest this filing must
file in accordance with Rules 211 and 214 of the Commission's Rules of
Practice and Procedure (18 CFR 385.211, 385.214). Protests will be
considered by the Commission in determining the appropriate action to
be taken, but will not serve to make protestants parties to the
proceeding. Any person wishing to become a party must file a notice of
intervention or motion to intervene, as appropriate. Such notices,
motions, or protests must be filed on or before the comment date.
Anyone filing a motion to intervene or protest must serve a copy of
that document on the Applicant and all the parties in this proceeding.
    The Commission encourages electronic submission of protests and
interventions in lieu of paper using the ``eFiling'' link at http://www.ferc.gov. Persons unable to file electronically should submit an
original and 5 copies of the protest or intervention to the Federal
Energy Regulatory Commission, 888 First Street NE., Washington, DC
20426.
    This filing is accessible on-line at http://www.ferc.gov, using the
``eLibrary'' link and is available for electronic review in the
Commission's Public Reference Room in Washington,

DC. There is an ``eSubscription'' link on the Web site that enables
subscribers to receive email notification when a document is added to a
subscribed docket(s). For assistance with any FERC Online service,
please email<EMAIL_ADDRESS>or call<PHONE_NUMBER> (toll
free). For TTY, call<PHONE_NUMBER>.
    Comment Date: 5:00 p.m. Eastern Time on March 2, 2015.

    Dated: January 26, 2015.
 Kimberly D. Bose,
 Secretary.
[FR Doc. 2015-02117 Filed 2-3-15; 8:45 am]
BILLING CODE 6717-01-P


[Federal Register: March 5, 2008 (Volume 73, Number 44)]
[Notices]
[Page 11905-11906]
[DOCID:fr05mr08-53]

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DEPARTMENT OF ENERGY

Federal Energy Regulatory Commission

[Docket No. ER08-67-001]

Ameren Services Company; Notice of Filing

February 28, 2008.
    Take notice that on January 28, 2008, pursuant to the Commission's
December 14, 2008 Order, Ameren Services Company filed a refund report.
    Any person desiring to intervene or to protest this filing must
file in accordance with Rules 211 and 214 of the Commission's Rules of
Practice and Procedure (18 CFR 385.211, 385.214). Protests will be
considered by the Commission in determining the appropriate action to
be taken, but will not serve to make protestants parties to the
proceeding. Any person wishing to become a party must file a notice of
intervention or motion to intervene, as appropriate. Such notices,
motions, or

protests must be filed on or before the comment date. Anyone filing a
motion to intervene or protest must serve a copy of that document on
the Applicant and all the parties in this proceeding.
    The Commission encourages electronic submission of protests and
interventions in lieu of paper using the ``eFiling'' link at http://
www.ferc.gov. Persons unable to file electronically should submit an
original and 14 copies of the protest or intervention to the Federal
Energy Regulatory Commission, 888 First Street, NE., Washington, DC
20426.
    This filing is accessible on-line at http://www.ferc.gov, using the
``eLibrary'' link and is available for review in the Commission's
Public Reference Room in Washington, DC. There is an ``eSubscription''
link on the Web site that enables subscribers to receive e-mail
notification when a document is added to a subscribed docket(s). For
assistance with any FERC Online service, please e-mail
<EMAIL_ADDRESS>or call<PHONE_NUMBER> (toll free). For
TTY, call<PHONE_NUMBER>.
    Comment Date: 5 p.m. Eastern Time on March 10, 2008.

Kimberly D. Bose,
Secretary.
[FR Doc. E8-4222 Filed 3-4-08; 8:45 am]

BILLING CODE 6717-01-P


[Federal Register Volume 80, Number 40 (Monday, March 2, 2015)]
[Rules and Regulations]
[Pages 11133-11136]
[FR Doc No: 2015-04146]

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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 52

[EPA-R05-OAR-2014-0662; FRL-9923-45-Region 5]

Approval and Promulgation of Air Quality Implementation Plans;
Ohio; Transportation Conformity

AGENCY: Environmental Protection Agency.

ACTION: Direct final rule.

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SUMMARY: The Environmental Protection Agency (EPA) is approving, under
the Clean Air Act, a revision to Ohio's transportation conformity state
implementation plan (SIP) that meets EPA and United States Department
of Transportation (DOT) requirements. This revision brings Ohio's
transportation conformity SIP into compliance with the requirements of
the Safe, Accountable, Flexible, Efficient Transportation Act: A Legacy
for Users (SAFETEA-LU).

DATES: This direct final rule will be effective May 1, 2015, unless EPA
receives adverse comments by April 1, 2015. If adverse comments are
received, EPA will publish a timely withdrawal of the direct final rule
in the Federal Register informing the public that the rule will not
take effect.

ADDRESSES: Submit your comments, identified by Docket ID No. EPA-R05-
OAR-2014-0662, by one of the following methods:
    1. www.regulations.gov: Follow the on-line instructions for
submitting comments.
    2. Email<EMAIL_ADDRESS>    3. Fax:<PHONE_NUMBER>.
    4. Mail: Pamela Blakley, Chief, Control Strategies Section, Air
Programs Branch (AR-18J), U.S. Environmental Protection Agency, 77 West
Jackson Boulevard, Chicago, Illinois 60604.
    5. Hand Delivery: Pamela Blakley, Chief, Control Strategies
Section, Air Programs Branch (AR-18J), U.S. Environmental Protection
Agency, 77 West Jackson Boulevard, Chicago, Illinois 60604. Such
deliveries are only accepted during the Regional Office normal hours of
operation, and special arrangements should be made for deliveries of
boxed information. The Regional Office official hours of business are
Monday through Friday, 8:30 a.m. to 4:30 p.m., excluding Federal
holidays.
    Instructions: Direct your comments to Docket ID No. EPA-R05-OAR-
2014-0662. EPA's policy is that all comments received will be included
in the public docket without change and may be

made available online at www.regulations.gov, including any personal
information provided, unless the comment includes information claimed
to be Confidential Business Information (CBI) or other information
whose disclosure is restricted by statute. Do not submit information
that you consider to be CBI or otherwise protected through
www.regulations.gov or email. The www.regulations.gov Web site is an
``anonymous access'' system, which means EPA will not know your
identity or contact information unless you provide it in the body of
your comment. If you send an email comment directly to EPA without
going through www.regulations.gov your email address will be
automatically captured and included as part of the comment that is
placed in the public docket and made available on the Internet. If you
submit an electronic comment, EPA recommends that you include your name
and other contact information in the body of your comment and with any
disk or CD-ROM you submit. If EPA cannot read your comment due to
technical difficulties and cannot contact you for clarification, EPA
may not be able to consider your comment. Electronic files should avoid
the use of special characters, any form of encryption, and be free of
any defects or viruses.
    Docket: All documents in the docket are listed in the
www.regulations.gov index. Although listed in the index, some
information is not publicly available, e.g., CBI or other information
whose disclosure is restricted by statute. Certain other material, such
as copyrighted material, will be publicly available only in hard copy.
Publicly available docket materials are available either electronically
in www.regulations.gov or in hard copy at the Environmental Protection
Agency, Region 5, Air and Radiation Division, 77 West Jackson
Boulevard, Chicago, Illinois 60604. This facility is open from 8:30
a.m. to 4:30 p.m., Monday through Friday, excluding Federal holidays.
We recommend that you telephone Anthony Maietta, Environmental
Protection Specialist, at<PHONE_NUMBER> before visiting the Region 5
office.

FOR FURTHER INFORMATION CONTACT: Anthony Maietta, Environmental
Protection Specialist, Control Strategies Section, Air Programs Branch
(AR-18J), Environmental Protection Agency, Region 5, 77 West Jackson
Boulevard, Chicago, Illinois 60604,<PHONE_NUMBER>,
<EMAIL_ADDRESS>
SUPPLEMENTARY INFORMATION: Throughout this document whenever ``we,''
``us,'' or ``our'' is used, we mean EPA. This supplementary information
section is arranged as follows:

I. What is the background for this action?
II. What is EPA's analysis of the state's submittal?
III. What action is EPA taking?
IV. Statutory and Executive Order Reviews.

I. What is the background for this action?

    A transportation conformity SIP can be adopted as a state rule, a
memorandum of understanding, or a memorandum of agreement. The
appropriate form of the state transportation conformity procedures
depends upon the requirements of local or state law, as long as the
selected form complies with all Clean Air Act requirements for
adoption, submission to EPA, and implementation of SIPs. EPA will
accept state transportation conformity SIPs in any form provided the
state can demonstrate to EPA's satisfaction that, as a matter of state
law, the state has adequate authority to compel compliance with the
requirements of the conformity SIP.
    The Ohio Environmental Protection Agency (Ohio EPA) collaborated
with the Akron Metropolitan Area Transportation Study, the Clark
County-Springfield Transportation Coordinating Committee, the Eastgate
Regional Council of Governments, EPA, the Erie Regional Planning
Commission, the Federal Highway Administration (FHWA), the Federal
Transit Administration (FTA), the Indiana Department of Environmental
Management, the Indiana Department of Transportation, the Kentucky-
Ohio-West Virginia Interstate Planning Commission, the Ohio-Kentucky-
Indiana Regional Council of Governments, the Ohio Department of
Transportation, the Licking County Area Transportation Study, the Lima-
Allen County Regional Planning Commission, the Miami Valley Regional
Planning Commission, the Mid-Ohio Regional Planning Commission, the
Northeast Ohio Areawide Coordinating Agency, the Toledo Metropolitan
Area Council of Governments, the West Virginia Department of
Environmental Protection, and the West Virginia Department of
Transportation (the agencies listed in this paragraph are referenced as
``Federal, state, and local agencies'' throughout this document) to
develop a transportation conformity SIP revision that meets EPA and DOT
transportation conformity requirements resulting from passage of
SAFETEA-LU.
    On August 20, 2014, the Ohio EPA submitted a request to EPA to
revise the Ohio transportation conformity SIP to include procedures,
roles, and responsibilities for involved Federal, state agencies, and
local agencies that must conduct transportation conformity planning and
consultation.

II. What is EPA's analysis of the state's submittal?

A. Background

    For EPA approval, the submittal must address and give full legal
effect to requirements laid out in three sections of title 40, part 93,
subpart A of the Code of Federal Regulations: Sec.  93.105, Sec.
93.122(a)(4)(ii), and Sec.  93.125(c).
40 CFR 93.105: Consultation
    Section 93.105 describes SIP requirements for interagency
consultation (between Federal, state, and local agencies), conflict
resolution, and public consultation. A transportation conformity SIP
must include well defined interagency consultation procedures that
define the roles and responsibilities for each participating agency.
These consultation procedures must include provisions for circulating
materials for comment before formal adoption, processes for convening
consultation meetings, and processes for responding to significant
comments of involved agencies. In addition, procedures for involved
Federal, state, and local agencies must be included that address:
     Evaluation and selection of an emissions model and
associated methods and assumptions to be used in hot-spot and regional
emissions analyses, including determining which minor arterials and
other transportation projects should be considered regionally
significant for purposes of regional emissions analyses.
     Evaluation and selection of an emissions model, associated
methods and assumptions, and projects to be included in determining
conformity in isolated rural nonattainment and maintenance areas.
     Evaluation of events that will trigger new conformity
determinations.
     Consultation on emissions analyses for transportation
activities that cross metropolitan planning organization (MPO),
nonattainment area, or air basin borders.
     Determination of conformity of projects that might lie
outside of a metropolitan planning area, but within a nonattainment
area, if such a situation exists.
     Disclosure of any regionally significant projects which
are not FHWA or FTA projects to the MPO on a regular basis.
     Interagency consultation on data collection efforts and
regional

transportation model development by the MPO.
     Provision of final documentation and supporting
information to each agency after approval or adoption.
     Resolution of conflicts among state agencies or between
state agencies and an MPO.
     Public consultation for affected agencies that make
conformity determinations on transportation plans, programs, and
projects consistent with the public consultation requirements listed in
23 CFR 450.316(a).
The Regulations at 40 CFR 93.122(a)(4)(ii) and 40 CFR 93.125(c):
Written Commitments for Control and Mitigation Measures
    The regulation at 40 CFR 93.122(a)(4)(ii) provides that a
transportation conformity SIP must contain provisions to ensure that
any emission reduction credits from control measures that are not
included in the SIP and that do not require a regulatory action in
order to be implemented will not be included in a project level
conformity determination unless the National Environmental Policy Act
document includes written commitments from the appropriate entities to
implement those control measures. These written commitments must be
obtained by the initiating party prior to a conformity determination
and the written commitments must be addressed by the initiating party.
    The regulation at 40 CFR 93.125(c) provides that a transportation
conformity SIP must contain provisions that ensure project-level
mitigation measures will be identified with written commitments if
those mitigation measures are part of the conditions for making the
project level conformity determination. The commitments must be
included in the project design and scope used in the regional emissions
analysis or project-level hot-spot analysis.
    The transportation conformity SIP revision submitted by the Ohio
EPA on August 20, 2014, meets the requirements of 40 CFR 93.105,
93.122(a)(4)(ii), and 93.125(c) and therefore is approvable into the
Ohio SIP.

III. What action is EPA taking?

    EPA is approving a revision to Ohio's transportation conformity SIP
submitted by Ohio EPA on August 20, 2014. We are publishing this action
without prior proposal because we view this as a noncontroversial
amendment and anticipate no adverse comments. However, in the proposed
rules section of this Federal Register publication, we are publishing a
separate document that will serve as the proposal to approve the state
plan if relevant adverse written comments are filed. This rule will be
effective May 1, 2015 without further notice unless we receive relevant
adverse written comments by April 1, 2015. If we receive such comments,
we will withdraw this action before the effective date by publishing a
subsequent document that will withdraw the final action. All public
comments received will then be addressed in a subsequent final rule
based on the proposed action. EPA will not institute a second comment
period. Any parties interested in commenting on this action should do
so at this time. Please note that if EPA receives adverse comment on an
amendment, paragraph, or section of this rule and if that provision may
be severed from the remainder of the rule, EPA may adopt as final those
provisions of the rule that are not the subject of an adverse comment.
If we do not receive any comments, this action will be effective May 1,
2015.

IV. Statutory and Executive Order Reviews

    Under the Clean Air Act, the Administrator is required to approve a
SIP submission that complies with the provisions of the Clean Air Act
and applicable Federal regulations. 42 U.S.C. 7410(k); 40 CFR 52.02(a).
Thus, in reviewing SIP submissions, EPA's role is to approve state
choices, provided that they meet the criteria of the Clean Air Act.
Accordingly, this action merely approves state law as meeting Federal
requirements and does not impose additional requirements beyond those
imposed by state law. For that reason, this action:
     Is not a ``significant regulatory action'' subject to
review by the Office of Management and Budget under Executive Orders
12866 (58 FR 51735, October 4, 1993) and 13563 (76 FR 3821, January 21,
2011);
     Does not impose an information collection burden under the
provisions of the Paperwork Reduction Act (44 U.S.C. 3501 et seq.);
     Is certified as not having a significant economic impact
on a substantial number of small entities under the Regulatory
Flexibility Act (5 U.S.C. 601 et seq.);
     Does not contain any unfunded mandate or significantly or
uniquely affect small governments, as described in the Unfunded
Mandates Reform Act of 1995 (Pub. L. 104-4);
     Does not have Federalism implications as specified in
Executive Order 13132 (64 FR 43255, August 10, 1999);
     Is not an economically significant regulatory action based
on health or safety risks subject to Executive Order 13045 (62 FR
19885, April 23, 1997);
     Is not a significant regulatory action subject to
Executive Order 13211 (66 FR 28355, May 22, 2001);
     Is not subject to requirements of Section 12(d) of the
National Technology Transfer and Advancement Act of 1995 (15 U.S.C. 272
note) because application of those requirements would be inconsistent
with the Clean Air Act; and
     Does not provide EPA with the discretionary authority to
address, as appropriate, disproportionate human health or environmental
effects, using practicable and legally permissible methods, under
Executive Order 12898 (59 FR 7629, February 16, 1994).
    In addition, the SIP is not approved to apply on any Indian
reservation land or in any other area where EPA or an Indian tribe has
demonstrated that a tribe has jurisdiction. In those areas of Indian
country, the rule does not have tribal implications and will not impose
substantial direct costs on tribal governments or preempt tribal law as
specified by Executive Order 13175.
    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 action 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. A major rule cannot
take effect until 60 days after it is published in the Federal
Register. This action is not a ``major rule'' as defined by 5 U.S.C.
804(2).
    Under section 307(b)(1) of the Clean Air Act, petitions for
judicial review of this action must be filed in the United States Court
of Appeals for the appropriate circuit by May 1, 2015. Filing a
petition for reconsideration by the Administrator of this final rule
does not affect the finality of this action for the purposes of
judicial review nor does it extend the time within which a petition for
judicial review may be filed, and shall not postpone the effectiveness
of such rule or action. Parties with objections to this direct final
rule are encouraged to file a comment in response to the parallel
notice of

proposed rulemaking for this action published in the proposed rules
section of today's Federal Register, rather than file an immediate
petition for judicial review of this direct final rule, so that EPA can
withdraw this direct final rule and address the comment in the proposed
rulemaking. This action may not be challenged later in proceedings to
enforce its requirements. (See section 307(b)(2).)

List of Subjects in 40 CFR Part 52

    Environmental protection, Air pollution control, Carbon monoxide,
Incorporation by reference, Intergovernmental relations, Nitrogen
dioxide, Ozone, Particulate matter, Reporting and recordkeeping
requirements, Volatile organic compounds.

    Dated: February 12, 2015.
Susan Hedman,
Regional Administrator, Region 5.

    40 CFR part 52 is amended as follows:

PART 52--APPROVAL AND PROMULGATION OF IMPLEMENTATION PLANS

0
1. The authority citation for part 52 continues to read as follows:

    Authority: 42 U.S.C. 7401 et seq.

0
2. Section 52.1880 is amended by adding paragraph (u) to read as
follows:

Sec.  52.1880  Control strategy; Particulate matter.

* * * * *
    (u) Approval--On August 20, 2014, the State of Ohio submitted a
revision to their Particulate Matter State Implementation Plan. The
submittal established transportation conformity ``Conformity'' criteria
and procedures related to interagency consultation, and enforceability
of certain transportation related control and mitigation measures.
0
3. Section 52.1885 is amended by adding paragraph (ll) to read as
follows:

Sec.  52.1885  Control strategy; Ozone.

* * * * *
    (ll) Approval--On August 20, 2014, the State of Ohio submitted a
revision to their Ozone State Implementation Plan. The submittal
established transportation conformity ``Conformity'' criteria and
procedures related to interagency consultation, and enforceability of
certain transportation related control and mitigation measures.

[FR Doc. 2015-04146 Filed 2-27-15; 8:45 am]
BILLING CODE 6560-50-P


                    UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
                               WASHINGTON, D.C.  20460

	OFFICE OF CHEMICAL SAFETY
	AND POLLUTION PREVENTION

MEMORANDUM

Date:  March 6, 2014

SUBJECT:	Clomazone.  PP#2E8136.  Brassica, Head and Stem, Subgroup 5A; Rhubarb; and Pea, Southern.  Summary of Analytical Methods and Residue Data.

PC Code:  125401
DP Barcodes:  D410436
Decision Nos:  473594
Registration No.:  279-3052
Petition Nos.:  2E8136
Regulatory Action:  Section 3 Registration
Risk Assessment Type: Res Chem
Case No.:  7203
TXR No.:  NA
CAS No.:  81777-89-1
MRID No.:  49026901, 49026902, 49026903
40 CFR:  180.425

FROM:	Susan V. Hummel, Chemist & Senior Scientist
		Risk Assessment Branch 4
		Health Effects Division (7509P)

THROUGH:	Thurston Morton, Chemist
		Risk Assessment Branch 4
		Health Effects Division (7509P)

TO:		Kable Davis, PM25
		Herbicide Fungicide Branch, Registration Division (7505P)

MRID Summary Table
MRID No.
Study Type
Comments
49026901
49026902
49026903
860.1500 Brassica, head and stem, subgroup 5A
860.1500 Rhubarb
860.1500 Pea, southern
New DER; 49026901.der.docx
New DER; 49026902.der.docx
New DER; 49026903.der.docx

The Interregional Research Project Number 4 (IR-4) has submitted a petition to establish tolerances for residues of clomazone on Brassica, head and stem, subgroup 5A; rhubarb; and pea, southern.  In connection with the petition, IR-4 requests amended registration of the FMC  product Command Technical (EPA Reg. No. 279-3052), to allow use on Brassica, head and stem, subgroup 5A; rhubarb; and pea, southern.  Tolerances for residues of clomazone, per se, have been established on a number of commodities ranging from 0.02 ppm in rice grain to 0.1 ppm in cabbage and several squashes in 40 CFR §180.425.
Executive Summary

Clomazone is an herbicide which is registered for use on snap beans, succulent peas, cabbage, cotton, cucurbits, pepper, mint, rice, soybeans, sugarcane, and tuberous & corm vegetables (except potato).  Tolerances for clomazone on these commodities are published in 40 CFR 180.425, including cabbage at 0.1 ppm.  Clomazone products are formulated as emulsifiable concentrates and microencapsulated formulations.  Applications are usually made as a single or split (2) pre-plant, or early post-emergence broadcast applications.  The current application requests adding Brassica, head and stem, subgroup 5A; rhubarb; and pea, Southern; to the label for Command 3ME, and proposes tolerances follows.
	Brassica, stem and head subgroup 5A	0.1 ppm
      Rhubarb					0.3 ppm
      Pea, Southern, succulent seed			0.05 ppm
      Pea, Southern, dry seed			0.05 ppm
      Pea, Southern, hay				0.05 ppm
And at the same time, revoke the tolerance for cabbage at 0.1 ppm, since cabbage will be covered by the new tolerance for Brassica, head and stem, subgroup 5A.

The residue of concern is clomazone, per se.  Residues of clomazone following treatment at the proposed rates to broccoli and southern pea, are non-quantifiable in broccoli, and southern pea seed (succulent and dry) and southern pea hay.  Residues of clomazone following treatment at the proposed rates to rhubarb resulted in quantifiable residues of up to 0.062 ppm; a 0.15 ppm tolerance is recommended.

Regulatory Recommendations and Residue Chemistry Deficiencies

HED recommends for the proposed tolerance, with corrections specified below, and for the associated amended use.  The current tolerance expression is in accord with our current guidance on tolerance expressions.  The field trials for clomazone on broccoli, rhubarb, and southern peas are adequate.  The enforcement analytical method is adequate. The residue data are supported by available storage stability data.

Tolerance Summary for Clomazone.  § 180.425
Commodity
                       Current/Proposed Tolerance (ppm)
                          Recommended Tolerance (ppm)
Comments; Correct Commodity Definition
Brassica, stem and head subgroup 5A
                                      0.1
                                     0.10
Brassica, head and stem, subgroup 5A. Tolerance changed to add a significant figure.
Rhubarb
                                      0.3
                                     0.30
Tolerance changed to add a significant figure.
Pea, Southern, succulent seed
                                     0.05
                                     0.05

Pea, Southern, dry seed
                                     0.05
                                     0.05

Pea, Southern, hay
                                     0.05
                                     0.05
Cowpea, hay and Cowpea, forage.  Southern pea hay is a very minor feed, but cowpea is a type of southern pea.

Revisions to Petitioned-For Tolerances and Existing Tolerances

Revisions are recommended to petitioned-for tolerances for consistent naming of commodities, and to add a significant figure.  The recommended changes are documented in the Table above.  Tolerances are being established for cowpea, forage, and cowpea, hay, rather than southern pea hay, because cowpea is a type of southern pea.

International Harmonization

There are no CODEX MRLs for residues of clomazone on any commodity.  Canada has not established MRLs for the commodities in this petition.

Required Label Changes

No label revisions are required; however, it should be noted that while the proposed maximum use rate on rhubarb is 1 application at 1.5 lb ai/A at dormancy, the submitted field trial data for rhubarb would support a second application at 1.0 lb ai/A a minimum of 50 days after the first application, with a PHI of 42 days, with a maximum seasonal application rate of 2.5 lb ai/A.  If a second application on rhubarb is desired, the petitioner should submit an amended petition to reflect this proposed use

Background

Clomazone is an herbicide which is registered for use on snap beans, succulent peas, cabbage, cotton, cucurbits, pepper, mint, rice, soybeans, sugarcane, and tuberous & corm vegetables (except potato).  Tolerances for clomazone on these commodities are published in 40 CFR 180.425, including rice grain and straw at 0.02 ppm..  Clomazone products are formulated as emulsifiable concentrates and microencapsulated formulations.  Applications are usually made as a single or split (2) pre-plant, or early post-emergence broadcast applications.  A layby use is registered for clomazone on cotton.  The current application requests adding Brassica, head and stem, subgroup 5A, rhubarb, and southern pea to the Command 3ME label.

The chemical structure and nomenclature of the active ingredient, clomazone, are presented below in Table 1.  The physicochemical properties are presented below in Table 2.

TABLE 1.	Test Compound Nomenclature.
Compound
Chemical Structure

Common name
Clomazone
Company experimental name
FMC 57020
IUPAC name
2-(2-chlorobenzyl)-4,4-dimethylisoxazolidin-3-one
CAS name
2-[(2-chlorophenyl)methyl]-4,4-dimethyl-3-isoxazolidinone
CAS #
81777-89-1
End-use product/(EP)
Command ME, EPA Reg. No. 279-3158

TABLE 2.	Physicochemical Properties of the Technical Grade Test Compound: Clomazone.
Parameter
Value
Reference
Melting point/range
  25 C, broad range
MRID 00144241
pH
  6.89 + 14 (supernatant of slurry)
MRID 00144241
Density
  1.187 g/mL
MRID 00144241
Water solubility ( mg/L at unspecified C)
  1100 mg/L
MRID 00144241
Solvent solubility (mg/L at unspecified C)
  >200 mg/L in Tenneco 500-100
  4.5-5.0 mg/L  in Isopar M
  >90 mg/L in refined soybean oil
  Infinite in dimethyl formamide
  Infinite in cyclohexanone
MRID 00144241
Vapour pressure at 25 C
  1.92 x 10 [-2] Pa (1.44 x 10 [-4] mm Hg)
MRID 00144241
Dissociation constant (pKa)
  N/A neither acidic nor basic
MRID 00144241
Octanol/water partition coefficient Log(KOW)
  350 (log p = 2.54)
MRID 00144241
UV/visible absorption spectrum
  Not available

860.1200  Directions for Use

Table 3.  Summary of Directions for Use of Clomazone
Applic. Timing, Type, and Equip.
Formulation
[EPA Reg. No.]
Applic. Rate
(lb ai/A)
Max. No. Applic. per Season
Max. Seasonal Applic. Rate
(lb ai/A)
PHI
(days)
Use Directions and Limitations
Brassica, Head & Stem, Subgroup 5A; Direct Seeded Cabbage; Transplant Broccoli
                                   Broadcast
                                 3.0 lb/gal ME
                                  [279-3158]
                                     0.25
                                       1
                                      NS
                                      NS
Use as a soil applied treatment prior to weed emergence.
                              Transplant Cabbage
                                   Broadcast
                           3.0 lb/gal ME [279-3158]
                                   0.25-0.5
                                       1
                                      NS
                                      NS
Use lower rate on coarse soils and higher rate on fine soils. Use as a soil applied treatment prior to weed emergence.
                                    Rhubarb
                                   Broadcast
                           3.0 lb/gal ME [279-3158]
                                      1.5
                                      NS
                                      NS
                                      NS
Apply to dormant rhubarb prior to leaf emergence.
                                Peas, Southern
                                   Broadcast
                           3.0 lb/gal ME [279-3158]
                                     0.52
                                       1
                                      NS
                                      NS
Use as a soil applied treatment prior to weed emergence.

Label restrictions include:
Command 3ME herbicide may be utilized as a soil applied treatment prior to weed emergence, for suppression or control of annual grass and broadleaf weeds in snap beans (succulent), brassica (head and stem subgroup 5A), cucumbers, peas (southern), peas (succulent), peppers, rhubarb, squash (including processing pumpkins) and sweet potatoes.

Make a single herbicide application in a minimum of 10 gallons of water per acre at the rate(s) specified in the individual crop listings hereafter. Apply as a pre-emergent soil applied treatment prior to seeding or transplanting, or after seeding but prior to crop emergence. Place seed, or roots of the transplants, below the chemical barrier when planting.

Rotational Crop Restrictions include suggestions for minimizing increased risk to rotational crops plus the following instructions for applications on rice at up to 0.8 lb ai/A
	-    The following crops may be planted anytime:   cabbage (transplants), cotton, peas, peppers, rice, soybeans, squash, sweet potatoes, tobacco, tuberous and corm vegetables.
	-    The following crops may be planted after 9 months: All crops listed above plus: beans (succulent and dry), cabbage (direct seeded), corn (field, pop, seed, sweet), cotton, cucurbits, peanuts, potatoes, sorghum, sugar beets, tomatoes (transplanted).
	-    The following crops may be planted after 12 months:  All crops listed above plus: tomatoes (direct seeded) and wheat
	-    The following crops may be planted after 16 months:  all crops.

Conclusions.  The label use directions for clomazone on Brassica, head and stem subgroup 5A, transplant broccoli and cabbage; and southern peas are adequate to evaluate the residue field trial data.  The use directions for rhubarb are not clear.  The number of applications per season, and maximum seasonal application rate are not stated.   The submitted field trial data for rhubarb would support a second application at 1.0 lb ai/A a minimum of 50 days after the first application, with a PHI of 42 days, with a maximum seasonal application rate of 2.5 lb ai/A.

OPPTS GLN 860.1300 Nature of the Residue - Plants
Soybeans: PP#4G2987, L. Propst, 4/17/84; PP#4F3128, J. Worthington, 9/24/84
Corn: PP#0G3919, J. Garbus, 11/8/91
Cotton: PP#2F4077, R.W. Cook, 10/28/92
Sweet Potatoes: PP#8E3628, M. J. Nelson, 4/22/92
Tomatoes and Bell Pepper: PP#9E3778, F. D. Griffith, 8/6/90
Alfalfa: PP#8E3608, A. Smith, 3/15/88

Based on metabolism studies on soybeans, corn, cotton, sweet potatoes, tomatoes and bell peppers, and alfalfa, HED concludes that the nature of the residue in plants is adequately understood.  The major metabolite was 2-chlorobenzyl alcohol.  The postulated major route of metabolism of clomazone in plants is hydroxylation of the methylene bridge carbon of clomazone to form the carbinolamide; decomposition of the unstable intermediate, the carbinolamide, to form the isoxazolidinone moiety and 2-chlorobenzaldehyde.  2-chlorobenzaldehyde reduces to the alcohol or is oxidized to the carboxylic acid.  The alcohol, the carboxylic acid, and the isoxazolidinone metabolites form glycosides and/or amino acid conjugates.  Minor pathways include hydroxylation of clomazone to form monohydroxylated and possibly dihydroxylated metabolites.  Based on low levels of these metabolites found in crops, the residue of concern for regulatory and risk assessment purposes in plants is clomazone per se (PP#8E3628, M. J. Nelson, 4/22/92).

The nature of the residue in plants and livestock is adequately understood.  The residue of concern is clomazone per se as specified in 40 CFR 180.425.

OPPTS GLN 860.1300 Nature of the Residue - Livestock
Ruminants: 40070001, PP#4F3128, L. Bradley, 5/11/87, DEB#5505, F. Griffith, 7/26/89
Poultry: 41663304, 41663305, PP#0G3919, J. Garbus, 11/8/91

As there are no livestock feed stuffs currently associated with Brassica, rhubarb, or southern peas, issues pertaining to the nature of the residue in livestock are not germane to this petition.

Goats were fed 0.5 ppm or 5.0 ppm ring-labeled clomazone by capsule (MRID 40070001) .  Morning and evening milk samples were pooled by day.  The majority (86-93%) of the residue was eliminated in the urine or feces.  Less than 1% of the residue was found in each of the tissues, and the residues were below detectable levels.

Poultry were fed 0.5 ppm or 5.0 ppm ring-labeled clomazone in their feed (MRIDs 41663304, 41663305).  Only egg yolk and liver contained significant levels of residues.  Clomazone, per se, was not detected in any tissue.  Unidentified residues polar conjugates, which appeared to be amino acid adducts.

Ortho-chlorobenzoic acid (OCBA) is a plant metabolite of clomazone which is not a rat metabolite.  OCBA is about 5% of the residue in alfalfa.  The polar residues in plants are postulated to be multiple hydroxylated metabolites.

OPPTS GLN 860.1340: Analytical Enforcement Methodology
PAM II, Method I

Adequate enforcement methods are available for the determination of the residues of clomazone in plants.  Briefly, samples are acid hydrolyzed, hexane extracted, Na2CO3 washed, and cleaned-up with a Florisil column.  The resulting samples are analyzed by gas chromatography (GC) using a nitrogen phosphorus detector (NPD) or mass spectrometer (MS).  The limit of quantitation (LOQ) for this method is 0.05 ppm.  A confirmatory procedure (GC/MS-SIM) is available (Method I, PAM II).

Clomazone was determined in broccoli using the analytical method adapted from method FMC No. ACG 124.  A number of minor modifications to the method were specified, including the use of an accelerated solvent extractor (ASE) in place of the extraction/partition steps and the use of an MSD detector in place of the nitrogen-phosphorus detector.  Briefly, clomazone residues were extracted from a five-gram sample of broccoli with hexane using an ASE.  The extracts were placed in a freezer for at least 1 hour and then evaporated to dryness.  Residues were redissolved in hexane for GC/MSD analysis, using single ion monitoring (SIM), monitoring m/z 204, for quantitation..  The column used was not specified in the report.  The LOQ (determined as the LLMV) was 0.03 ppm for broccoli and rhubarb; and 0.05 ppm in southern pea commodities.  The calculated LOQ and LOD, respectively, were 0.01850 and 0.006168 ppm in broccoli; 0.0394 and 0.0131 ppm in rhubarb, and .

Conclusions.  An adequate enforcement method is available.  The residue data were gathered with an adequate data collection method.

860.1360 Multiresidue Methods
MRID 42325301, PP#0G3919, J. Garbus, D178768, 9/21/92

Multiresidue methods data are available for clomazone tested through Protocols C, D and E.  Due to the chemical structure of clomazone, Protocols A and B are not applicable.  GC parameters were gathered for clomazone in Protocol C.  Recovery of clomazone through protocol E was partial and variable (7 to 58%).

860.1380 Storage Stability
49026901.der.docx, 49026902.der.docx, 49026903.der.docx
D242601, M. Perry, 1/29/98; and D272158, D. Vogel, 1/24/01.

Concurrent storage stability data were included with each field trial report in this submission, although no zero day data were provided.  Storage stability samples were stored under the same conditions as the field trial samples, and residues of clomazone on broccoli, rhubarb, and pea commodities were stable.  Storage stability data also are available for field corn, rice and sugarcane which demonstrate that residues of clomazone are stable for up to 12 months (Memos,

TABLE 4.	Summary of Storage Conditions.
                                    Matrix
                           Storage Temperature (°C)
                          Actual Storage Duration[1]
                  Limit of Demonstrated Storage Stability[2]
                                   Broccoli
                            (Flower head and stem)
                             Frozen (at NDSU lab)
                            -28 to -13 (at MSU lab)
                                 323-531 days
                              (10.6-17.5 months)
                                   539 days
                                 (17.7 months)
                               Rhubarb Petioles
                             Frozen (at NDSU lab)
                            -28 to -9 (at MSU lab)
                                 236-276 days
                               (7.8-9.1 months)
                                   278 days
                                 (9.1 months)
Succulent Shelled Pea
                                     ~ -20
                                 860-1015 days
                              (28.3-33.4 months)
                                   1102 days
                                 (36.3 months)
Plants With Pods, Fresh

                                 871-1027 days
                              (28.7-33.8 months)
                                   1103 days
                                 (36.3 months)
Shelled Dry Pea

                                 886-1020 days
                              (29.1-33.6 months)
                                   1101 days
                                 (36.2 months)
Plants with Pods, Dry

                                 858-1014 days
                              (28.2-33.4 months)
                                   1099 days
                                 (36.2 months)

Conclusions.    Storage stability data are adequate to support the submitted field trial data.

860.1400 Water, Fish, and Irrigated Crops

This topic is not pertinent to the current application for amended registration.

The Clomazone 3ME label contains a label restriction, prohibiting use of rice water on rice fields in which concurrent crayfish or catfish farming are included in the cultural practices, and use water of containing Command 3ME residues from rice cultivation to irrigate food or feed crops which are not registered for use with Command 3ME.

Conclusions.  No further information is required.

860.1460 Food Handling

This topic is not pertinent to the current submission.

860.1480 Meat, Milk, Poultry, and Eggs
Garbus, J., 11/8/91; PP#0G3919

No change is needed to the rice tolerance.  So far, no detectable residues have been found in rice commodities.  A ruminant metabolism study is available which demonstrated that 5.0 ppm clomazone in the livestock diet resulted in 2 to 9 ppb in milk, and 0.03 to 0.05 ppm in the liver and kidney tissue (Memo, Joel Garbus, 11/8/91; PP#0G3919).  Since, under the proposed use, clomazone is not detectable in livestock feed/feedstuffs (<0.05 ppm) and it is transferred to meat and milk at a low level, no detectable residues are expected in meat, or milk.   While rice grain is a poultry feedstuff, high clomazone doses in poultry yielded low levels in tissue and eggs, so that no clomazone residues are expected in poultry commodities.

860.1500 Crop Field Trials
Broccoli: 49026901.der.docx,
Rhubarb: 49026902.der.docx,
Southern peas: 49026903.der.docx

IR-4 has submitted field trial data for clomazone on broccoli, rhubarb, and southern peas.

Broccoli.  Eight field trials were conducted in the United States during the 2002 growing season in the North American Free Trade Agreement (NAFTA) Growing Zones 1 (NY; 1 trial), 6 (TX; 1 trial), 10 (CA; 5 trials), and 12 (OR; 1 trial).  At each trial location, the treated crops received one preplant application of a 3 lb ai/gal microencapsulated (ME) formulation of clomazone (Command(R) 3 ME) at 0.24-0.25 lb ai/A.  Applications were made using ground equipment in spray volumes of 20.0-35.6 gal/A.  Adjuvants were not added to the spray mixture at any of the trial sites.  Samples of broccoli (flower head and stem) were harvested from all trials at a 52- to 120-day preharvest interval (PHI).

Samples were analyzed for residues of clomazone using an adequate gas chromatography method with mass spectrometric detection (GC/MSD), with single ion monitoring (m/z 204), adapted from FMC No. ACG 124, as discussed above under Analytical Methodology.  The samples were stored frozen awaiting analysis, as discussed above under Storage Stability.

Following one preplant application of the 3 lb ai/gal ME formulation of clomazone at 0.24-0.25 lb ai/A, residues of clomazone in/on broccoli flower head and stem harvested at a 52- to 120-day PHI were all <LOQ (<0.03 ppm).

TABLE 5.  Summary of Residue Data from Broccoli Field Trials with Clomazone.
Commodity
                                    Analyte
                                  Total Rate
                                   (lb ai/A)
                                  PHI (days)
                            Residue Levels (ppm)[1]

                                       n
                                  Sample Min.
                                  Sample Max.
                                    LAFT[2]
                                    HAFT[2]
                                    Median
                                     Mean
                                  Std.  Dev.
Broccoli
                                   Clomazone
                                   0.24-0.25
                                    52-120
                                       8
                                   <0.03
                                   <0.03
                                   <0.03
                                   <0.03
                                     0.03
                                     0.03
                                      N/A
[1]  Except for sample min/max, values reflect per trial averages; n = no. of field trials.  N/A = Not applicable.
[2]  LAFT = lowest average field trial; HAFT = highest average field trial.

Brassica, head and stem, subgroup 5A.  There are 2 representative commodities for Brassica, head and stem, subgroup 5A, broccoli or cauliflower, and cabbage.  The broccoli residue data are discussed above.  A tolerance has been established for residues of clomazone on cabbage at 0.1 ppm (PP#4E4311, N. Dodd, D199086, 04/17/95, MRID 43077301).    Command 4EC was applied at 0.5 lb ai/A as a single broadcast application in at least 10 gallons of water per acre, using ground equipment before seeding or transplanting cabbage.  Clomazone is incorporated to a depth of 1 inch or less.  Residues were reported to be non-quantifable at less than 0.1 ppm except in one sample in which interferences were noted, and the limit of quantitation was 0.17 ppm.

Rhubarb.  Four field trials were conducted in the United States during the 2003 growing season in the North American Free Trade Agreement (NAFTA) Growing Zones 5 (MI; 1 trial) and 12 (OR; 3 trials).  At each trial location, the high- and low-rate treated plots, respectively, received two broadcast applications of a 3 lb ai/gal microencapsulated (ME) formulation of clomazone (Command(R) 3 ME) at 1.49-1.66 or 0.96-1.14 lb ai/A for application one and 0.98-1.14 or 0.75-0.85 lb ai/A for application two, for a total seasonal rate of 2.49-2.76 or 1.71-1.99 lb ai/A.  The first application was made to dormant plants followed by a second application to rhubarb approximately 8-24 inches in height.  Applications were made at 44- to 63-day retreatment intervals (RTIs) using ground equipment in spray volumes of 19.6-45.7 gal/A.  Adjuvants were not added to the spray mixture at any of the trial sites.  Samples of rhubarb were harvested from all trials at a 41- to 44-day preharvest interval (PHI).

Samples were analyzed for residues of clomazone using an adequate gas chromatography method with mass spectrometric detection (GC/MSD), with single ion monitoring (m/z 204), adapted from FMC No. ACG 124, as discussed above under Analytical methodology.  The samples were stored frozen awaiting analysis, as discussed above under Storage Stability.

Following two foliar broadcast applications of the 3 lb ai/gal ME formulation of clomazone at 2.49-2.76 (~1.7  -  1.8x) and 1.71-1.99 lb ai/A (~1.1  -  1.3x), respectively, residues of clomazone (and per trial averages) in/on rhubarb petioles harvested at a 41- to 44-day PHI were <0.03-0.180 (<0.033-0.114) and <0.03-0.076 (<0.03-0.062) ppm.

TABLE 6.  Summary of Residue Data from Rhubarb Field Trials with Clomazone.
Commodity
                                    Analyte
                                  Total Rate
                                   (lb ai/A)
                                  PHI (days)
                            Residue Levels (ppm)[1]

                                       n
                                  Sample Min.
                                  Sample Max.
                                    LAFT[2]
                                    HAFT[2]
                                    Median
                                     Mean
                                  Std.  Dev.
Rhubarb Petioles
                                   Clomazone
                                   2.49-2.76
                                     41-44
                                       4
                                   <0.03
                                     0.180
                                   <0.033
                                     0.114
                                     0.046
                                     0.060
                                     0.038

                                   1.71-1.99

                                       4
                                   <0.03
                                     0.076
                                   <0.03
                                     0.062
                                     0.044
                                     0.045
                                     0.017
[1]  Except for sample min/max, values reflect per trial averages; n = no. of field trials.
[2]  LAFT = lowest average field trial; HAFT = highest average field trial.

Southern Peas.  Four field trials were conducted in the United States during the 2007 growing season in the North American Free Trade Agreement (NAFTA) Growing Zones 2 (SC; 1 trial), 4 (TN; 1 trial), and 6 (TX; 2 trials).  At each trial location, the treated plots received one pre-emergent application of a 3 lb ai/gal microencapsulated (ME) formulation of clomazone (Command(R) 3 ME) at 0.484-0.501 lb ai/A.  Applications were made using ground equipment in spray volumes of 16.9-27.6 gal/A.  Adjuvants were not added to the spray mixture at any of the trial sites.  Samples of shelled succulent pea and fresh pea plants with pods were harvested from all trials at a 62- to 77-day preharvest interval (PHI).  A second harvest occurred at a 77- to 91-day PHI to collect samples of mature dry pea plants with pods and shelled dry pea.

Samples were analyzed for residues of clomazone using a gas chromatography method with mass spectrometric detection (GC/MSD), with single ion monitoring (m/z 204), adapted from FMC No. ACG 124, as discussed above under Analytical Methodology.  The samples were stored frozen awaiting analysis, as discussed above under Storage Stability.

Following one pre-emergent broadcast application of the 3 lb ai/gal ME formulation of clomazone at 0.484-0.501 lb ai/A, residues of clomazone in/on shelled succulent pea and fresh plants with pods and shelled dry pea and dry plants with pods and harvested at a 62- to 77-day and 77- to 91-day PHIs, respectively, were all <LOQ (<0.05 ppm).

TABLE 7.  Summary of Residue Data from Southern Pea Field Trials with Clomazone.
Commodity
                                    Analyte
                                  Total Rate
                                   (lb ai/A)
                                  PHI (days)
                            Residue Levels (ppm)[1]

                                       n
                                  Sample Min.
                                  Sample Max.
                                    LAFT[2]
                                    HAFT[2]
                                    Median
                                     Mean
                                  Std.  Dev.
Shelled Succulent Pea
                                   Clomazone
                                  0.484-0.501
                                     62-77
                                       4
                                   <0.05
                                   <0.05
                                   <0.05
                                   <0.05
                                     0.05
                                     0.05
                                      N/A
Plants With Pods, Fresh

                                       4
                                   <0.05
                                   <0.05
                                   <0.05
                                   <0.05
                                     0.05
                                     0.05
                                      N/A
Shelled Dry Pea

                                     77-91
                                       4
                                   <0.05
                                   <0.05
                                   <0.05
                                   <0.05
                                     0.05
                                     0.05
                                      N/A
Plants with Pods, Dry

                                       4
                                   <0.05
                                   <0.05
                                   <0.05
                                   <0.05
                                     0.05
                                     0.05
                                      N/A
[1]  Except for sample min/max, values reflect per trial averages; n = no. of field trials.  N/A = Not applicable.
[2]  LAFT = lowest average field trial; HAFT = highest average field trial.

Conclusions.  The submitted field trial studies are adequate to fulfill the data requirements.  The field trials reflected the proposed use pattern.  The analytical method used was adequate for data gathering.   Samples were analyzed for clomazone, per se, which is the residue of concern.  Residues were within the proposed tolerances of 0.10, 0.3 ppm, and 0.05 ppm for clomazone in or on Brassica, head and stem, subgroup 5A, rhubarb, and southern pea commodities, respectively.  The basis for the 0.1 ppm tolerance on Brassica, head and stem, subgroup 5A, is the existing tolerance for residues of clomazone on cabbage, currently set at 0.1 ppm.  Although the EC formulation was used in the cabbage field trials, since both the cabbage residues and the broccoli residues are less than the limit of quantation, the 0.1 ppm tolerance for residues of clomazone on Brassica, head and stem, subgroup 5A, will be considered appropriate.  When the tolerance on Brassica, head and stem, subgroup 5A, is established, the tolerance on cabbage should be revoked.  The residue data for southern pea whole plants will support a tolerance for residues of clomazone on cowpea forage and hay.

860.1520:  Processing Studies

There are no processed commodities associated with the petitioned for tolerances.  This topic is not pertinent to the current petition.

860.1850/1900: Rotational Crop
Offutt,C., 7/2/1985
Creeger, S., 8/27/1985

The minimum PBI, 9 months, has been approved by EFED (Memo, Carolyn Offutt, 7/2/85).  This restriction was based on low levels of organosoluble residues (<0.02 ppm) observed at the 10-month interval in the confined rotational crop study conducted at an application rate of 2 lbs a.i./A (Memo, Samuel Creeger, 11/23/1984).

Tolerance Recommendations

The current tolerance expression for clomazone in 40 CFR 180.425 is:

Tolerances are established for residues of the herbicide clomazone, including its metabolites and degradates, in or on the commodities in the table in this paragraph. Compliance with the tolerance levels specified in this paragraph is to be determined by measuring only clomazone, 2-[(2-chlorophenyl)methyl]-4,4-dimethyl-3-isoxazolidinone, in or on the commodity.

The current tolerance expression is in accord with our current guidance on tolerance expressions.

There are no CODEX MRLs for residues of clomazone on any commodity.  Canada has not established MRLs for the commodities in this petition.

Tolerance recommendations are found in the Executive Summary of this review.  The proposed tolerances were modified to add a significant figure, to correct the commodity definition, and to delete the unneeded tolerance on pea, southern, hay.

REFERENCES

Creeger, S., "Environmental Fate Review of Registration of Dimethazone Technical and Products, 279-GNLE, -GNLG, -GNLU, Accession Number 072819, 248476," Review by S. Hong, EPA Memorandum dated 11/23/1984

Dodd, N., "PP#4E4311.  Clomazone on Cabbage. Review of Analytical Methods and Residue Data."  D199086, EPA Memorandum dated 04/17/95, MRID 43077301.

Garbus, J., "PP#0G3919. EPA Reg. No. 279-3053. Clomazone in or on Corn R.A.C's. Request for Extension of EUP Program 279-EUP-118 and Temporary Tolerances. Evaluation of Analytical Methodology and Residue Data. MRID Nos. 416633-01 thru 4166330-13, 417251-01 and -02. DEB Nos. 7383, 7384, and 7560."  EPA Memorandum dated 11/8/91.

Garbus, J., "PP#0G3919. EPA Reg. No. 279-3053. Clomazone in or on corn R.A.C's. Additional Analytical Data: Independent Validation of Originally Proposed Enforcement Method and Response of Clomazone in FDA Multi-Residue protocols. MRID Nos. 4423253-01 and -02: DP Barcodes D178735 and D178768. CBTS Nos. 9947, 9948."  EPA Memorandum dated 8/21/92.

Offutt, C., "Estimated Enviromental Concentrations Review of FMC 57020, 279-GNLE, -GNLG, & -GNLU."  Reviewed by R. Holst and S. Hong.  EPA Memorandum dated 7/2/1985.

Perry, Mark. "PP# 7F04896. Clomazone (Reg. No. 279-3158) in/on Rice. Evaluation of    Analytical Methods and Residue Data. MRID Nos. 44348401 and 44348402. DP Barcode D242601. PC Code 125401"  EPA Memorandum to Ed Zager, dated 1/29/98.

Vogel, Dana, "PP#9F06056.  Clomazone (i.e. Command 3ME) in/on Sugarcane.  Evaluation of Residue Data and Analytical Methods for Sugarcane.  MRID#s 449104-02-04.  Chemical 125401.  Barcode D272158."  EPA memorandum to Jim Tompkins, dated 14 Jan 2001.

RDI:  TMorton:8/26/2013

Appendix I: International Residue Status

              Clomazone (PC Code 125401; Date of Request 8/21/13)
Summary of US and International Tolerances and Maximum Residue Limits
Residue Definition:
US
Canada
Mexico[2]
Codex[3]
40 CFR 180.425
Plants: Clomazone, 2-[(2-chlorophenyl)methyl]-4,4-dimethyl-3-isoxazolidinone
2-(2-cholorobenzyl)-4,4-dimethyl-1,2-oxazolidin-3-one

None
Commodity[1]
Tolerance (ppm) /Maximum Residue Limit (mg/kg)

US
Canada
Mexico[2]
Codex[3]
Brassica, stem and head subgroup 5A
0.1

Rhubarb
0.3

Pea, Southern, succulent seed
0.05

Pea, Southern, dry seed
0.05

Pea, Southern, hay
0.05

Completed:  M. Negussie; 08/26/13

[1] Includes only commodities of interest for this action.  Tolerance values should be the HED recommendations and not those proposed by the applicant.
2 Mexico adopts US tolerances and/or Codex MRLs for its export purposes.
3 * = absent at the limit of quantitation; Po = postharvest treatment, such as treatment of stored grains.  PoP = processed postharvest treated commodity, such as processing of treated stored wheat.  (fat) = to be measured on the fat portion of the sample.  MRLs indicated as proposed have not been finalized by the CCPR and the CAC.

Appendix II

                                   Clomazone
                                    Rhubarb
                                      US
                            2 x 1.5 or 1.0 lb ai/A

Total number of data (n)
                                       8
Percentage of censored data
                                      25%
Number of non-censored data
                                       6
Lowest residue
                                     0.022
Highest residue
                                     0.180
Median residue
                                     0.042
Mean
                                     0.059
Standard deviation (SD)
                                     0.051
Correction factor for censoring (CF)
                                     0.833

Proposed MRL estimate

- Highest residue
                                     0.180
- Mean + 4 SD
                                     0.263
- CF x 3 Mean
                                     0.146
Unrounded MRL
                                     0.263

Rounded MRL
                                      0.3

Residues (mg/kg)
                                     0.030
                                       *
                                     0.035

                                     0.022
                                       *
                                     0.036

                                     0.047

                                     0.180

                                     0.067

                                     0.051