40 CFR § 166.45 - Duration of crisis exemption.

---
identifier: "/us/cfr/t40/s166.45"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 166.45 - Duration of crisis exemption."
title_number: 40
title_name: "Protection of Environment"
section_number: "166.45"
section_name: "Duration of crisis exemption."
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "E"
subchapter_name: "PESTICIDE PROGRAMS"
part_number: "166"
part_name: "EXEMPTION OF FEDERAL AND STATE AGENCIES FOR USE OF PESTICIDES UNDER EMERGENCY CONDITIONS"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "7 U.S.C. 136p, and 136w."
regulatory_source: "51 FR 1902, Jan. 15, 1986, unless otherwise noted."
cfr_part: "166"
---


# 166.45 Duration of crisis exemption.

A crisis exemption may be authorized for:

(a) Only as long as is necessary to control the pest or conditions causing the emergency; and

(b) No longer than 15 days, unless an application requesting a specific, quarantine, or public health exemption for this use has been submitted to the Agency.