[Federal Register Volume 62, Number 88 (Wednesday, May 7, 1997)]
[Rules and Regulations]
[Pages 24835-24838]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 97-11901]


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ENVIRONMENTAL PROTECTION AGENCY

40 Part CFR 180

[OPP-300480; FRL-5713-5]
RIN 2070-AB78


Aminoethoxyvinylglycine; Pesticide Tolerances

AGENCY: Environmental Protection Agency (EPA).

ACTION: Final Rule.

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SUMMARY: This document establishes time-limited tolerances for residues 
of the plant regulator aminoethoxyvinylglycine in or on the food 
commodities apples and pears. The tolerances expire on and will be 
revoked by EPA on April 1, 2001. Abbott Laboratories submitted a 
petition to EPA under the Federal Food, Drug and Cosmetic Act as 
amended by the Food Quality Protection Act of 1996 requesting the 
tolerances. This regulation sets the permissible levels of this plant 
regulator on apples and pears.

 EFFECTIVE DATE: This regulation becomes effective May 7, 1997. 
Objections and hearing requests must be filed by July 7, 1997.

ADDRESSES: Written objections and hearing requests, identified by the 
document control number [OPP-300480], may be submitted to: Hearing 
Clerk (1900), Environmental Protection Agency, Rm. M3708, 401 M St., 
SW., Washington, DC 20460. Fees accompanying objections and hearing 
requests shall be labeled ``Tolerance Petition Fees'' and forwarded to 
EPA Headquarters Accounting Operations Branch, OPP (Tolerance Fees), 
P.O. Box 360277M, Pittsburg, PA 15251. A copy of any objections and 
hearing requests filed with the Hearing Clerk should be identified by 
the document control number and submitted 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, bring a copy of objections and hearing 
requests to: Rm. 1132, CM #2, 1921 Jefferson Davis Hwy., Arlington, VA 
22202.
    A copy of objections and hearing requests filed with the Hearing 
Clerk may also be submitted electronically to the OPP by sending 
electronic mail (e-mail) to: [email protected]. Copies of objections 
and hearing requests must be submitted as an ASCII file avoiding the 
use of special characters and any form of encryption. Copies of 
objections and hearing requests will also be accepted on disks in 
Wordperfect in 5.1 file format or ASCII file format. All copies of 
objections and hearing requests in electronic form must be identified 
by the docket number [OPP-300480]. No Confidential Business Information 
(CBI) should be submitted through e-mail. Electronic copies of 
objections and hearing requests on this rule may be filed online at 
many Federal Depository Libraries. Additional information on electronic 
submissions can be found in Unit VII of this document.
FOR FURTHER INFORMATION CONTACT: By mail: Denise Greenway, c/o Product 
Manager (PM) 90, Biopesticides and Pollution Prevention Division 
(7501W), Environmental Protection Agency, 401 M St., SW., Washington, 
DC 20460. Office location and telephone number: Rm. 5-W57, CS #1, 2800 
Crystal Drive, Arlington, VA 22202, (703) 308-8263; e-mail: 
[email protected].
SUPPLEMENTARY INFORMATION: In the Federal Register of February 20, 1997 
(62 FR 7778), EPA issued a notice pursuant to section 408(d) of the 
Federal Food, Drug, and Cosmetic Act (FFDCA), 21 U.S.C. 346a(d), 
announcing the filing of a pesticide tolerance petition by Abbott 
Laboratories, 1401 Sheridan Road, North Chicago, IL 60064-4000. The 
notice contained a summary of the petition prepared by the petitioner 
and this summary contained conclusions and arguments to support its 
conclusion that the petition complied with the Food Quality Protection 
Act (FQPA) of 1996. The petition requested that 40 CFR part 180 be 
amended by adding tolerances for residues of aminoethoxyvinylglycine, 
in or on the following food commodities: apples at 0.08 part per 
million (ppm), and pears at 0.08 ppm.
    There were no comments or requests for referral to an advisory 
committee received in response to the notice of filing.
    The data submitted in the petition and other relevant material have 
been evaluated. The toxicology data listed below were considered in 
support of these tolerances.

I. Toxicological Profile

    1. A battery of acute toxicity studies placing technical 
aminoethoxyvinylglycine in Toxicity Categories III and IV.
    2. A 13-week feeding study in rats at dietary intakes of 0, 0.45, 
1.9 and 9.2 milligrams per kilogram per day (mg/kg/day) (males) and 0, 
0.55, 2.2, and 9.4 mg/kg/day (females) with a no-observed-effect-level 
(NOEL) of 9.2 mg/kg/day for male rats and 2.2 mg/kg/day for female 
rats. The lowest-observed-effect-level (LOEL) was established at 9.4 
mg/kg/day (the highest dose tested in females) based on reduced body 
weight gain, food consumption and food efficiency; increased severity 
and incidence of reversible kidney and liver effects; and discoloration 
of the liver.
    3. A developmental toxicity study in rats at 0, 0.4, 1.77, and 8.06 
mg/kg/day. The maternal LOEL is 8.06 mg/kg/day (the highest dose 
tested) based on decreased defecation, body weight gain, and food 
consumption; and the presence of red material around the nose. The 
developmental LOEL is also 8.06 mg/kg/day based on decreased mean fetal 
body weight and increases (within historical ranges) in two 
developmental skeletal variants (reduced ossification of the sternebrae 
and vertebral arches). The NOEL for maternal and developmental toxicity 
was established at 1.77 mg/kg/day.
    4. A 21-day repeated dose dermal toxicity study in rats at 0, 100, 
500, and 1,000 mg/kg/day. The NOEL is 1,000 mg/kg/day; a LOEL was not 
determined.
    5. An immunotoxicity study in rats at 0, 1.25, 2.5, 5 and 15 mg/kg/
day with a NOEL of 5 mg/kg/day based on the decreased primary antibody 
(IgM) response to sheep red blood cells; decreased absolute and 
relative thymus weights; decreased body weight, food consumption and 
food efficiency at the high-dose level. The LOEL is 15 mg/kg/day. The 
study did not fully meet the requirements outlined in the Pesticide 
Assessment Guidelines Subdivision M OPPTS Series 152-18. However, 
because a NOEL and LOEL were determined, and found to be consistent 
with those from other repeat-dose studies, the study need not be 
repeated.
    6. An acceptable Ames study for inducing reverse mutation in 
Salmonella strains of bacteria exposed with or without activation at 
doses up to 5,000 micrograms per plate. The study showed negative 
results.
    7. An acceptable study for inducing micronuclei in bone marrow 
cells of rats treated up to the maximum dose tested of 6,200 mg/kg. The 
study showed negative results.
    8. A mutagenicity study with mouse lymphoma cells with or without 
activation to doses up to 5,000 micrograms/mL. Aminoethoxyvinylglycine 
is not mutagenic or cytotoxic when tested against mouse lymphoma cells 
strain L5178Y at a concentration of 5,000 micrograms/mL.

[[Page 24836]]

    9. Additional data (a two-generation reproduction study in the rat) 
is being required by the Agency.

II. Aggregate Exposures

    1. From food and feed uses. The primary source for human exposure 
to aminoethoxyvinylglycine will be from ingestion of both raw and 
processed food commodities as proposed in the February 20, 1997 Notice 
of Filing cited above. Based on tolerances of 0.08 ppm in or on apples 
and pears, the Theoretical Maximum Residue Contributions (TMRC) for the 
U.S. adult population and for U.S. children (1 to 6 years of age) were 
determined. In deriving the dietary exposure to 
aminoethoxyvinylglycine, EPA assumed that 100% of the apple and pear 
crops were cultured with the aid of this plant regulator. A subchronic 
exposure was used to estimate the TMRC. The TMRC for the U.S. 
population was estimated to be 0.000069 mg/kg/day. The TMRC for non-
nursing infants less than 1 year old was 0.000722 mg/kg/day. The TMRC 
for nursing infants less than 1 year old was 0.000552 mg/kg/day. The 
TMRC for children 1 to 6 years old was 0.000224 mg/kg/day. The TMRC for 
children 7 to 12 years old was 0.000092 mg/kg/day.
    2. From potable water. In examining aggregate exposure, FQPA 
directs EPA to consider available information concerning exposures from 
the pesticide residue in food and all other non-occupational exposures. 
The primary non-food sources of exposure the Agency looks at include 
drinking water (whether from groundwater or surface water), and 
exposure through pesticide use in gardens, lawns, or buildings 
(residential and other indoor uses).
    Because the Agency lacks sufficient water-related exposure data to 
complete a comprehensive drinking water risk assessment for many 
pesticides, EPA has commenced and nearly completed a process to 
identify a reasonable yet conservative bounding figure for the 
potential contribution of water-related exposure to the aggregate risk 
posed by a pesticide. In developing the bounding figure, EPA estimated 
residue levels in water for a number of specific pesticides using 
various data sources. The Agency then applied the estimated residue 
levels, in conjunction with appropriate toxicological endpoints 
(Reference Doses (RfDs) or acute dietary NOELs) and assumptions about 
body weight and consumption, to calculate, for each pesticide, the 
increment of aggregate risk contributed by consumption of contaminated 
water. While EPA has not yet pinpointed the appropriate bounding figure 
for consumption of contaminated water, the ranges the Agency is 
continuing to examine are all below the level that would cause 
aminoethoxyvinylglycine to exceed the RfD if the time-limited 
tolerances being considered in this document were granted. The Agency 
has therefore concluded that the potential exposures associated with 
aminoethoxyvinylglycine in water, even at the higher levels the Agency 
is considering as a conservative upper bound, would not prevent the 
Agency from determining that there is a reasonable certainty of no harm 
if the time-limited tolerances are granted.
    3. From non-dietary uses. There is a proposed non-dietary use for 
aminoethoxyvinylglycine as a commercial plant regulator to be applied 
to certain ornamentals. There are no proposed home and garden uses. The 
exposure from this commercial use is expected to be dermal in nature. 
An acute dermal toxicity study yielded an LD50 of > 2 g/kg. 
A 21-day repeated dose dermal toxicity study resulted in no significant 
treatment-related effects at 1,000 mg/kg/day, the highest dose tested.
    4. Cumulative exposure to substances with common mechanism of 
toxicity. Section 408(b)(2)(D)(v) requires that, when considering 
whether to establish, modify, or revoke a tolerance, the Agency 
consider ``available information'' concerning the cumulative effects of 
a particular pesticide's residues and ``other substances that have a 
common mechanism of toxicity.'' The Agency believes that ``available 
information'' in this context might include not only toxicity, 
chemistry, and exposure data, but also scientific policies and 
methodologies for understanding common mechanisms of toxicity and 
conducting cumulative risk assessments. For most pesticides, although 
the Agency has some information in its files that may turn out to be 
helpful in eventually determining whether a pesticide shares a common 
mechanism of toxicity with any other substances, EPA does not at this 
time have the methodologies to resolve the complex scientific issues 
concerning common mechanism of toxicity in a meaningful way. EPA has 
begun a pilot process to study this issue further through the 
examination of particular classes of pesticides. The Agency hopes that 
the results of this pilot process will increase the Agency's scientific 
understanding of this question such that EPA will be able to develop 
and apply scientific principles for better determining which chemicals 
have a common mechanism of toxicity and evaluating the cumulative 
effects of such chemicals. The Agency anticipates, however, that even 
as its understanding of the science of common mechanisms increases, 
decisions on specific classes of chemicals will be heavily dependent on 
chemical-specific data, much of which may not be presently available.
    Although at present the Agency does not know how to apply the 
information in its files concerning common mechanism issues to most 
risk assessments, there are pesticides as to which the common mechanism 
issues can be resolved. These pesticides include pesticides that are 
toxicologically and structurally dissimilar to existing chemical 
substances (in which case the Agency can conclude that it is unlikely 
that a pesticide shares a common mechanism of activity with other 
substances) and pesticides that produce a common toxic metabolite (in 
which case common mechanism of activity will be assumed).
    EPA does not have, at this time, available data to determine 
whether aminoethoxyvinylglycine 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, 
aminoethoxyvinylglycine 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 aminoethoxyvinylglycine has 
a common mechanism of toxicity with other substances.

III. Determination of Safety for U.S. Population and Non-nursing 
Infants

    1. The U.S. population. Based on a NOEL of 2.2 milligrams per 
kilogram of bodyweight per day (mg/kg bwt/day) from a subchronic 
toxicity study that demonstrated reduced body weight gain, food 
consumption, and food efficiency; increased severity and incidence of 
reversible kidney and liver effects; and discoloration of the liver; 
and using an uncertainty factor of 1,000 the Agency has set a RfD of 
0.0002 mg/kg bwt/day for this assessment of risk. Based on the 
available toxicity data and the available exposure data identified 
above, the proposed tolerances will utilize 3.4% of the RfD for the 
U.S. population.
    2. Non-nursing infants.  Exposure to non-nursing infants as a 
result of the use of aminoethoxyvinylglycine in the culture of apples 
and pears will result in the use of 36.1% of the RfD.
    3. From nonfood uses. Exposure from nonfood uses of 
aminoethoxyvinylglycine and from

[[Page 24837]]

contaminated potable water sources have not been precisely addressed in 
this assessment. However, the EPA does not foresee that these exposures 
will result in a cumulative level that exceeds the RfD. EPA concludes 
that there is reasonable certainty that no harm will result from the 
aggregate exposures to residues of aminoethoxyvinylglycine.

IV. Determination of Safety for Infants and Children

    Risk to infants and children was determined by the use of a 
developmental study in rats that had a NOEL for developmental toxicity 
of 1.77 mg/kg/day, based on decreased mean fetal body weight and 
increases (within historical ranges) in two developmental skeletal 
variants (reduced ossification of the sternebrae and vertebral arches), 
and a maternal NOEL of 1.77 mg/kg/day based on decreased defecation, 
body weight gain, and food consumption; and the presence of red 
material around the nose.
    FFDCA section 408 provides that EPA may apply an additional tenfold 
margin of exposure (safety) for infants and children in the case of 
threshold effects to account for pre- and post-natal toxicity and the 
completeness of the data base unless EPA determines that a different 
margin of exposure (safety) will be safe for infants and children.
    Available data indicate that maternal and developmental toxicity 
were observed in the developmental toxicity study in rats at the 
highest dose tested (8.06 mg/kg/day). Maternal toxicity was observed in 
the rat in the 8.06 mg/kg/day dose group as decreased defecation, body 
weight gain, and food consumption; and the presence of red material 
around the nose. Developmental toxicity was observed in the high dose 
group (8.06 mg/kg/day) as decreased mean fetal body weight and 
increases (within historical ranges) in two developmental skeletal 
variants (reduced ossification of the sternebrae and vertebral arches). 
Due to the incompleteness of the data, the Agency used a thousandfold 
uncertainty factor in the RfD calculations, and has imposed a 
requirement for a two-generation reproduction study in rats. The 
thousandfold uncertainty factor includes an additional uncertainty 
factor of 10 to protect infants and children.
    The percent of the RfD that will be utilized by the aggregate 
exposure to aminoethoxyvinylglycine will range from 4.6% for children 7 
to 12 years old, up to 36.1% for non-nursing infants less than 1 year 
old. Therefore, EPA concludes that there is a reasonable certainty that 
no harm will result to infants and children from aggregate exposure.

V. Other Considerations

A. Endocrine Effects

    Currently, EPA does not have any data indicating that 
aminoethoxyvinylglycine has endocrine effects. The Agency is not 
requiring information on the endocrine effects of this biochemical 
plant regulator at this time; Congress has allowed 3 years after FQPA 
was signed into law on August 3, 1996, for the Agency to implement a 
screening and testing program with respect to endocrine effects.

B. Metabolism in Plants and Animals

    The metabolism of aminoethoxyvinylglycine in plants and animals is 
adequately understood for the purposes of these time-limited 
tolerances. A study designed to determine whether uptake, translocation 
and metabolism of aminoethoxyvinylglycine occurs in apples identified 
seven minor metabolites in addition to the primary metabolite, N-acetyl 
aminoethoxyvinylglycine. The study was not meant as a measure of the 
amount of aminoethoxyvinylglycine residues and metabolites found in 
apples under normal field conditions. The only significant 
incorporation of aminoethoxyvinylglycine in apple tissues, following 
brush-on application at high rates, resulted from absorption from the 
peel rather than translocation from the leaves. Aminoethoxyvinylglycine 
is also metabolized in the tissues to form N-acetyl 
aminoethoxyvinylglycine and several other minor metabolites, and is 
partially degraded on the apple surface to water-soluble products that 
may be formed due to microbial and/or photodegradative action.

C. Analytical Method

    There is a practical method for detecting and measuring levels of 
aminoethoxyvinylglycine in or on food with a limit of detection that 
allows monitoring of food with residues at or above the levels set in 
these time-limited tolerances. The proposed analytical method for 
determining residues is high-pressure liquid chromatography (HPLC). The 
HPLC/fluorescence detector analytical method used by the registrant has 
been validated by an independent laboratory (ABC Laboratories), as 
required by PR Notice 88-5, and is sufficient for these time-limited 
tolerances. Validation by an EPA laboratory is a condition of 
registration for aminoethoxyvinylglycine, and upon such validation 
information on this method will be provided to FDA. In the interim, the 
registrant-submitted method is available to anyone interested in 
pesticide enforcement when requested by mail from: Calvin Furlow, 
Public Response Branch. Field Operations Division (7506C), Office of 
Pesticide Programs, Environmental Protection Agency, 401 M St., SW., 
Washington, DC 20460. Office location and telephone number: Rm. 1130A, 
CM #2, 1921 Jefferson Davis Hwy., Arlington, VA 22202 (703) 305-5937.

D. International Tolerances

    There are no Codex Alimentarius Commission (Codex) Maximum Residue 
Levels (MRLs) for residues of aminoethoxyvinylglycine on apples or 
pears, or on any other crops.

E. Data Gaps

    A data gap currently exists for a rat two-generation reproduction 
study. All tolerances are time-limited because of this data gap. The 
time limitation allows for development and review of the data. The 
study, imposed by EPA to augment the results of the developmental 
toxicity study, is expected to be submitted and reviewed prior to the 
expiration date of these tolerances. Based on the available 
toxicological data, the thousandfold uncertainty factor, and the levels 
of exposure, the EPA has determined that the proposed time-limited 
tolerances have a reasonable certainty of no harm from aggregate 
exposure to the pesticide and its residues.

F. Summary of Findings

    The analysis for aminoethoxyvinylglycine using tolerance level 
residues shows that the proposed uses in the culture of apples and 
pears will not cause exposure to exceed the levels at which the Agency 
believes there is an appreciable risk. All population subgroups 
examined by EPA are exposed to aminoethoxyvinylglycine residues at 
levels below 100 percent of the RfD for chronic effects.
    Based on the information cited above, the Agency has determined 
that the establishment of the time-limited tolerances by adding a new 
section to 40 CFR part 180 will be safe; therefore the time-limited 
tolerances are established as set forth below.

VI. Objections and Hearing Requests

    The new FFDCA section 408(g) provides essentially the same process 
for persons to ``object'' to a tolerance regulation issued by EPA under 
new section 408(e) and (1)(6) as was provided in the old section 408 
and in

[[Page 24838]]

section 409. However, the period for filing objections is 60 days, 
rather than 30 days. EPA currently has procedural regulations which 
govern the submission of objections and hearing requests. These 
regulations will require some modification to reflect the new law. 
However, until those modifications can be made, EPA will continue to 
use those procedural regulations with appropriate adjustments to 
reflect the new law.
    Any person may, by July 7, 1997, file written objections to any 
aspect of this regulation and may also request a hearing on those 
objections. Objections and hearing requests must be filed with the 
Hearing Clerk, at the address given above (40 CFR 178.20). A copy of 
the objections and/or hearing requests filed with the Hearing Clerk 
should be submitted to the OPP docket for this rulemaking. The 
objections submitted must specify the provisions of the regulation 
deemed objectionable and the grounds for the objections (40 CFR 
178.25). Each objection must be accompanied by the fee prescribed by 40 
CFR 180.33(i). If a hearing is requested, the objections must include a 
statement of the factual issue(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). 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 issue(s) in the manner sought by the requestor would be 
adequate to justify the action requested (40 CFR 178.32). Information 
submitted in connection with an objection or hearing request may be 
claimed confidential by marking any part or all of that information as 
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 information that does not contain CBI must be 
submitted for inclusion in the public record. Information not marked 
confidential may be disclosed publicly by EPA without prior notice.

VII. Public Docket

    EPA has established a record for this rulemaking under docket 
number [OPP-300480] (including any comments and data submitted 
electronically). A public version of this record, including printed, 
paper versions of electronic comments, which does not include any 
information claimed as CBI, is available for inspection from 8:30 a.m. 
to 4 p.m., Monday through Friday, excluding legal holidays. The public 
record is located in Room 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 may be sent directly to EPA at:
    [email protected].

    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 any copies of objections and hearing requests 
received electronically into printed, paper form as they are received 
and will place the paper copies in the official 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.

VIII. Regulatory Assessment Requirements

    Under Executive Order 12866 (58 FR 51735, Oct. 4, 1993), this 
action is not a ``significant regulatory action'' and since this action 
does not impose any information collection requirements subject to 
approval under the Paperwork Reduction Act, 44 U.S.C. 3501 et seq., it 
is not subject to review by the Office of Management and Budget. In 
addition, this action does not impose any enforceable duty, or contain 
any ``unfunded mandates'' as described in Title II of the Unfunded 
Mandates Reform Act of 1995. (Pub. L. 104-4), or require prior 
consultation as specified by Executive Order 12875 (58 FR 58093, Oct. 
28, 1993), or special considerations as required by Executive Order 
12898 (59 FR 7629, February 16, 1994).
    Because tolerances established on the basis of a petition under 
section 408(d) of FFDCA do not require issuance of a proposed rule, the 
regulatory flexibility analysis requirements of the Regulatory 
Flexibility Act (RFA), 5 U.S.C. 604(a), do not apply. Prior to the 
recent amendment of the FFDCA, EPA had treated such rulemakings as 
subject to the RFA; however, the amendments to the FFDCA clarify that 
no proposal is required for such rulemakings and hence that the RFA is 
inapplicable. Nonetheless, the Agency has previously assessed whether 
establishing tolerances or exemptions from tolerance, raising tolerance 
levels, or expanding exemptions adversely impact small entities and 
concluded, as a generic matter, that there is no adverse impact (46 FR 
24950, May 4, 1981).
    Pursuant to 5 U.S.C. 801(a)(1)(A), EPA submitted 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 
General Accounting Office prior to publication of the rule in today's 
Federal Register. This rule is not a major rule as defined by 5 U.S.C. 
804(2).

List of Subjects in 40 CFR Part 180

    Environmental protection, Administrative practice and procedure, 
Agricultural commodities, Pesticides and Pests, Reporting and 
recordkeeping requirements.
    Dated: April 24, 1997.

Daniel M. Barolo,

Director, Office of Pesticide Programs.
    Therefore, 40 CFR part 180 is 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. By adding Sec. 180.502 to read as follows:


Sec. 180.502   Aminoethoxyvinylglycine; tolerances for residues.

    (a) General. Tolerances are established for residues of 
aminoethoxyvinylglycine in or on the following food commodities:

------------------------------------------------------------------------
                                           Parts per       Revocation/  
                Commodity                   million     Expiration Date 
------------------------------------------------------------------------
Apples..................................         0.08      April 1, 2001
Pears...................................         0.08     4April 1, 2001
------------------------------------------------------------------------

    (b)  Section 18 emergency exemptions. [Reserved]
    (c) Tolerances with regional registrations. [Reserved]
    (d) Indirect or inadvertent residues. [Reserved]
[FR Doc. 97-11901 Filed 5-6-97; 8:45 am]
BILLING CODE 6560-50-F