StacksVerified U.S. regulatory reference

40 CFR §180.1270

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
Isophorone (CAS Reg. No. 78-59-1) is exempt from the requirement of a tolerance when used as an inert ingredient in pesticide formulations applied to beets, ginseng, rice, spinach, sugar beets, and Swiss chard.