40 CFR § 172.21 - Definitions.

---
identifier: "/us/cfr/t40/s172.21"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 172.21 - Definitions."
title_number: 40
title_name: "Protection of Environment"
section_number: "172.21"
section_name: "Definitions."
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "E"
subchapter_name: "PESTICIDE PROGRAMS"
part_number: "172"
part_name: "EXPERIMENTAL USE PERMITS"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "7 U.S.C. 136c, 136w. Section 172.4 is also issued under 31 U.S.C. 9701."
regulatory_source: "40 FR 18782, Apr. 30, 1975, unless otherwise noted."
cfr_part: "172"
---


# 172.21 Definitions.

Terms used in this subpart shall have the meaning set forth in FIFRA and in § 172.1.

*Designated State agency* means the State agency designated by State law or other authority to be responsible for registering pesticides to meet special local needs.

*Public or private agricultural research agency or educational institution* means any organization engaged in research pertaining to the agricultural use of pesticides, or any educational institution engaged in pesticide research. Any research agency or educational institution whose principal function is to promote, or whose principal source of income is directly derived from, the sale or distribution of pesticides (or their active ingredients) does not come within the meaning of this term.

[73 FR 75599, Dec. 12, 2008]