CFR›Title 40›Chapter I›Part 172 ContainsSubparts A–CCorpusDaily eCFRDisplayed edition2026-04-15Last updated2026-04-15 PART 172—EXPERIMENTAL USE PERMITS Subparts A Subpart A—Federal Issuance of Experimental Use Permits Sections 172.1–172.11 B Subpart B—State Issuance of Experimental Use Permits Sections 172.20–172.26 C Subpart C—Notification for Certain Genetically Modified Microbial Pesticides Sections 172.43–172.59 Authority7 U.S.C. 136c, 136w. Section 172.4 is also issued under 31 U.S.C. 9701.Source40 FR 18782, Apr. 30, 1975, unless otherwise noted. Previous 171 Part 171—Certification of Pesticide Applicators Next 173 Part 173—Procedures Governing the Rescission of State Primary Enforcement Responsibility for Pesticide Use Violations