BILLING CODE 6560-50-P
ENVIRONMENTAL PROTECTION AGENCY
[EPA-HQ-OPP-2017-0751; FRL-11990-01-OCSPP]
Pesticide Registration Review; Decisions for Several Pesticides; Notice of Availability
AGENCY: Environmental Protection Agency (EPA).
ACTION: Notice.
SUMMARY: This notice announces the availability of EPA’s interim registration review
decisions for the following chemicals: Aluminium phosphide, magnesium phosphide, phosphine,
tetrachlorvinphos and triadimefon.
FOR FURTHER INFORMATION CONTACT: For pesticide specific information, contact:
The Chemical Review Manager for the pesticide of interest identified in Table 1 of Unit I.
For general information on the registration review program, contact: Melanie Biscoe,
Pesticide Re-Evaluation Division (7508P), Office of Pesticide Programs, Environmental
Protection Agency, 1200 Pennsylvania Ave., NW, Washington, DC 20460-0001; telephone
number: (202) 566-0701; email address: biscoe.melanie@epa.gov.
SUPPLEMENTARY INFORMATION:
I. Purpose of this Notice
Pursuant to 40 CFR 155.58(c), this notice announces the availability of EPA’s interim or
final registration review decisions for the pesticides shown in Table 1. The interim and final
registration review decisions are supported by rationales included in the docket established for
each chemical.

Table 1. Interim Registration Review Decisions Being Issued
Registration Review Case Docket ID Number
Name and Number
Aluminum Phosphide
EPA-HQ-OPP-2013-0081
Case Number 0025
Magnesium Phosphide
Case Number 0645

EPA-HQ-OPP-2013-0081

Phosphine
Case Number 7608

EPA-HQ-OPP-2013-0081

Tetrachlorvinphos
Case Number 0321

EPA-HQ-OPP-2008-0316

Triadimefon
Case Number 2700

EPA-HQ-OPP-2016-0114

Chemical Review Manager and
Contact Information
Jonathan Williams
williams.jonathanr@epa.gov
(202) 566-2240
Jonathan Williams
williams.jonathanr@epa.gov
(202) 566-2240
Jonathan Williams
williams.jonathanr@epa.gov
(202) 566-2240
Patricia Biggio
biggio.patricia@epa.gov
(202) 566-1938
Matthew Khan
khan.matthew@epa.gov
(202) 566-2212

II. Background
EPA is conducting its registration review of the chemicals listed in Table 1 of Unit I
pursuant to the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) section 3(g) (7
U.S.C. 136a(g)) and the Procedural Regulations for Registration Review at 40 CFR part 155,
subpart C. FIFRA section 3(g) provides, among other things, that pesticide registrations are to be
reviewed every 15 years. Consistent with 40 CFR 155.57, in its final registration review
decision, EPA will ultimately determine whether a pesticide continues to meet the registration
standard in FIFRA section 3(c)(5) (7 U.S.C. 136a(c)(5)). As part of the registration review
process, the Agency has completed interim or final registration review decisions for the
pesticides in Table 1 of Unit I.
Prior to completing the interim registration review decisions in Table 1 of Unit I, EPA
posted proposed interim registration review decisions for these chemicals and invited the public
to submit any comments or new information, consistent with 40 CFR 155.58(a). EPA considered
and responded to any comments or information received during these public comment periods in
the respective interim registration review decisions.

For additional background on the registration review program, see:
https://www.epa.gov/pesticide-reevaluation.
Authority: 7 U.S.C. 136 et seq.
Dated: June 18, 2024.

Jean Overstreet,
Director, Pesticide Re-Evaluation Division,
Office of Pesticide Programs.
[FR Doc. 2024-13808 Filed: 6/21/2024 8:45 am; Publication Date: 6/24/2024]