[Federal Register Volume 60, Number 85 (Wednesday, May 3, 1995)]
[Proposed Rules]
[Pages 21784-21786]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 95-10867]
[[Page 21784]]
ENVIRONMENTAL PROTECTION AGENCY
40 CFR Part 180
[OPP-300383; FRL-4945-6]
RIN 2070-AB78
Poly(phenylhexylurea), Cross-Linked; Tolerance Exemption
AGENCY: Environmental Protection Agency (EPA).
ACTION: Proposed rule.
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SUMMARY: This document proposes to establish an exemption from the
requirement of a tolerance for residues of poly(phenylhexylurea),
cross-linked, when used as an inert ingredient (encapsulating agent) in
pesticide formulations applied to growing crops only under 40 CFR
180.1001(d) to replace the existing exemption from the requirement of a
tolerance for residues of cross-linked polyurea-type encapsulating
polymer under 40 CFR 180.1082. The Monsanto Co. requested this proposed
regulation.
DATES: Written comments, identified by the document control number,
[OPP-300383], must be received on or before June 2, 1995.
ADDRESSES: By mail, submit written comments to Public Response and
Program Resources Branch, Field Operations Division (7506C), Office of
Pesticide Programs, Environmental Protection Agency, 401 M St., SW.,
Washington, DC 20460. In person, deliver comments to: Rm. 1132, CM #2,
1921 Jefferson Davis Hwy., Arlington, VA 22202.
Information submitted as a comment concerning this document may be
claimed confidential by marking any part or all of that information as
``Confidential Business Information'' (CBI). Information so marked will
not be disclosed except in accordance with procedures set forth in 40
CFR part 2. A copy of the comment that does not contain CBI must be
submitted for inclusion in the public record. Information not marked
confidential will be included in the public docket by EPA without prior
notice. All written comments will be available for public inspection in
Rm. 1132 at the address given above, from 8 a.m. to 4 p.m., Monday
through Friday, excluding legal holidays.
Comments and data may also be submitted electronically by sending
electronic mail (e-mail) to: opp-docket@epamail.epa.gov. Electronic
comments must be submitted as an ASCII file avoiding the use of special
characters and any form of encryption. Comments and data will also be
accepted on disks in WordPerfect in 5.1 file format or ASCII file
format. All comments and data in electronic form must be identified by
the docket number [OPP-300383]. No Confidential Business Information
(CBI) should be submitted through e-mail. Electronic comments on this
proposed rule may be filed online at many Federal Depository Libraries.
Additional information on electronic submissions can be found below in
this document.
FOR FURTHER INFORMATION CONTACT: By mail: Mary Waller, Registration
Support Branch, Registration Division (7505W), Environmental Protection
Agency, 401 M St., SW., Washington, DC 20460. Office location and
telephone number: 2800 Crystal Drive, North Tower, 6th Floor,
Arlington, VA 22202, (703)-308-8811; e-mail:
Waller.Mary@epamail.epa.gov.
SUPPLEMENTARY INFORMATION: The Monsanto Co., Suite 1100, 700 14th St.,
NW., Washington, DC 20005, submitted pesticide petition (PP) 4E04408 to
EPA requesting that the Administrator, pursuant to section 408(e) of
the Federal Food Drug, and Cosmetic Act (FFDCA) (21 U.S.C. 346a(e)),
propose to amend 40 CFR part 180 by replacing the existing exemption
from the requirement of a tolerance for residues of cross-linked
polyurea-type encapsulating polymer listed under 40 CFR 180.1082 with
an exemption from the requirement of a tolerance for residues of
poly(phenylhexylurea), cross-linked, when used as an inert ingredient
(encapsulating agent) in pesticide formulations applied to growing
crops only under 40 CFR 180.1001(d).
Inert ingredients are all ingredients that are not active
ingredients as defined in 40 CFR 153.125, and include, but are not
limited to, the following types of ingredients (except when they have a
pesticidal efficacy of their own): solvents such as alcohols and
hydrocarbons; surfactants such as polyoxyethylene polymers and fatty
acids; carriers such as clay and diatomaceous earth; thickeners such as
carrageenan and modified cellulose; wetting, spreading, and dispersing
agents; propellants in aerosol dispensers; microencapsulating agents;
and emulsifiers. The term ``inert'' is not to imply nontoxicity; the
ingredient may or may not be chemically active.
The data submitted in the petition and other relevant material have
been evaluated. As part of the EPA policy statement on inert
ingredients published in the Federal Register of April 22, 1987 (52 FR
13305), the Agency set forth a list of studies which would generally be
used to evaluate the risks posed by the presence of an inert ingredient
in a pesticide formulation. However, where it can be determined without
that data that the inert ingredient will present minimal or no risk,
the Agency generally does not require some or all of the listed studies
to rule on the proposed tolerance or exemption from the requirement of
a tolerance for an inert ingredient. The Agency has decided that no
data, in addition to that described below, for poly(phenylhexylurea),
cross-linked, will need to be submitted. The rationale for this
decision is described below.
In the case of certain chemical substances that are defined as
``polymers,'' the Agency has established a set of criteria which
identify categories of polymers that present low risk. These criteria
(described in 40 CFR 723.250) identify polymers that are relatively
unreactive and stable compared to other chemical substances as well as
polymers that typically are not readily absorbed. These properties
generally limit a polymer's ability to cause adverse effects. In
addition, these criteria exclude polymers about which little is known.
The Agency believes that polymers meeting the criteria noted above will
present minimal or no risk. Poly(phenylhexylurea), cross-linked,
conforms to the definition of a polymer given in 40 CFR 723.250(b)(11)
and meets the following criteria that are used to identify low-risk
polymers.
1. The minimum number-average molecular weight of
poly(phenylhexylurea), cross-linked, is 36,000. Substances with
molecular weights greater than 400 generally are not absorbed through
the intact skin, and substances with molecular weights greater than
1,000 generally are not absorbed through the intact gastrointestinal
tract. Chemicals not absorbed through skin or GI tract generally are
incapable of eliciting a toxic response.
2. Poly(phenylhexylurea), cross-linked, is not a cationic polymer,
nor is it reasonably expected to become a cationic polymer in a natural
aquatic environment.
3. Poly(phenylhexylurea), cross-linked, does not contain less than
32.0 percent by weight of the atomic element carbon.
4. Poly(phenylhexylurea), cross-linked, contains as an integral
part of its composition the atomic elements carbon, hydrogen, nitrogen,
and oxygen.
5. Poly(phenylhexylurea), cross-linked, does not contain as an
integral part of its composition, except as impurities, any elements
other than those listed in 40 CFR 723.250(d)(3)(ii). [[Page 21785]]
6. Poly(phenylhexylurea), cross-linked, is not a biopolymer, a
synthetic equivalent of a biopolymer, or a derivative or modification
of a biopolymer that is substantially intact.
7. Poly(phenylhexylurea), cross-linked, is not manufactured from
reactants containing, other than impurities, halogen atoms or cyano
groups.
8. Poly(phenylhexylurea), cross-linked, does not contain a reactive
functional group that is intended or reasonably expected to undergo
further reaction.
9. Poly(phenylhexylurea), cross-linked, is neither designed nor
reasonably expected to substantially degrade, decompose, or
depolymerize.
The establishment of an exemption from the requirement of a
tolerance for residues of poly(phenylhexylurea), cross-linked, when
used as an inert ingredient (encapsulating agent) in pesticide
formulations applied to growing crops only under 40 CFR 180.1001 will
obviate the need to maintain an exemption of polyurea-type
encapsulating polymer as listed under 40 CFR 180.1082. The polymer
listed in 40 CFR 180.1082 is described as being ``formed by the
reaction of polymethylene polyphenylisocyanate and hexamethylene
diamine.'' The resultant polymer can best be described as
poly(phenylhexylurea), cross-linked, the subject of this proposed
regulation.
In addition, based on the polymer's conformance to the set of
criteria that are used to identify low-risk polymers, the additional
use restrictions described in 40 CFR 180.1082 (i.e., use as an
encapsulating material for formulations of alachlor (2-chloro-N-(2,6-
diethylphenyl)-N-(methoxymethyl) acetamide) for use on dry beans, lima
beans, peas, potatoes and soybeans, when applied to the soil before
edible portions of the crops form are no longer applicable.
Based on the information above and review of its use, EPA has found
that, when used in accordance with good agricultural practice, this
ingredient is useful, and a tolerance is not necessary to protect the
public health. Therefore, EPA proposes that the exemption from the
requirement of a tolerance be established as set forth below.
Any person who has registered or submitted an application for
registration of a pesticide, under the Federal Insecticide, Fungicide,
and Rodenticide Act (FIFRA) as amended, that contains any of the
ingredients listed herein, may request within 30 days after the
publication of this document in the Federal Register that this
rulemaking proposal be referred to an Advisory Committee in accordance
with section 408(e) of the FFDCA.
Interested persons are invited to submit written comments on the
proposed regulation. Comments must bear a notation indicating the
document control number, [OPP-300383]. All written comments filed in
response to this petition will be available in the Public Response and
Program Resources Branch, at the address given above, from 8 a.m. to 4
p.m., Monday through Friday, except legal holidays.
A record has been established for this rulemaking under docket
number [OPP-300383] (including comments and data submitted
electronically as described below). A public version of this record,
including printed, paper versions of electronic comments, which does
not include any information claimed as CBI, is available for inspection
from 8 a.m. to 4:30 p.m., Monday through Friday, excluding legal
holidays. The public record is located in Room 1132 of the Public
Response and Program Resources Branch, Field Operations Division
(7506C), Office of Pesticide Programs, Environmental Protection Agency,
Crystal Mall #2, 1921 Jefferson Davis Highway, Arlington, VA.
Electronic comments can be sent directly to EPA at:
opp-Docket@epamail.epa.gov
Electronic comments must be submitted as an ASCII file avoiding the
use of special characters and any form of encryption.
The official record for this rulemaking, as well as the public
version, as described above will be kept in paper form. Accordingly,
EPA will transfer all comments received electronically into printed,
paper form as they are received and will place the paper copies in the
official rulemaking record which will also include all comments
submitted directly in writing. The official rulemaking record is the
paper record maintained at the address in ``ADDRESSES'' at the
beginning of this document.
The Office of Management and Budget has exempted this rule from the
requirements of section 2 of Executive Order 12866.
Pursuant to the requirement of the Regulatory Flexibility Act (Pub.
L. 96-354, 94 Stat. 1164, 5 U.S.C. 601-612), the Administrator has
determined that regulations establishing new tolerances or raising
tolerance levels or establishing exemptions from tolerance requirements
do not have an economic impact on a substantial number of small
entities. A certification statement to this effect was published in the
Federal Register of May 4, 1981 (46 FR 24950).
List of Subject in 40 CFR Part 180
Environmental protection, Administrative practice and procedure,
Agricultural commodities, Pesticides and pests, Reporting and
recordkeeping requirements.
Dated: April 20, 1995.
Stephen L. Johnson,
Director, Registration Division, Office of Pesticide Programs.
Therefore, it is proposed that 40 CFR part 180 be amended as
follows:
PART 180--[AMENDED]
1. The authority citation for part 180 continues to read as
follows:
Authority: 21 U.S.C. 346a and 371.
2. Section 180.1001(d) is amended in the table therein by adding
and alphabetically inserting the inert ingredient, to read as follows:
Sec. 180.1001 Exemptions from the requirement of a tolerance.
* * * * *
(d) * * *
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Inert ingredients Limits Uses
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* * * *
* * *
Poly(phenylhexylurea), ................ Encapsulating agent.
cross-linked; minimum
average molecular weight
36,000.
* * * *
* * *
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[[Page 21786]] * * * * *
Sec. 180.1082 [Removed]
3. By removing Sec. 180.1082 Cross-linked polyurea-type
encapsulating polymer (Alachlor); exemption from the requirement of a
tolerance.
[FR Doc. 95-10867 Filed 5-2-95; 8:45 am]
BILLING CODE 6560-50-F
