40 CFR § 176.13 - Modification of a time-limited tolerance.

---
identifier: "/us/cfr/t40/s176.13"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 176.13 - Modification of a time-limited tolerance."
title_number: 40
title_name: "Protection of Environment"
section_number: "176.13"
section_name: "Modification of a time-limited tolerance."
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "E"
subchapter_name: "PESTICIDE PROGRAMS"
part_number: "176"
part_name: "TIME-LIMITED TOLERANCES FOR EMERGENCY EXEMPTIONS"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "21 U.S.C. 346a and 371."
regulatory_source: "65 FR 64131, Oct. 25, 2000, unless otherwise noted."
cfr_part: "176"
---


# 176.13 Modification of a time-limited tolerance.

If additional emergency or crisis exemptions are authorized that would extend use beyond the date originally authorized, or if EPA determines that the duration of a time-limited tolerance is insufficient to allow treated commodities to clear the channels of trade, EPA may modify the time-limited tolerance by publication of a final rule in the *Federal Register.* EPA will use the same criteria and procedures for modification as for establishing tolerances under this part.