CFR /  Title 40  /  Part 180  /  Sec. 180.1270 Isophorone; exemption from the requirement of a

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. [71 FR 45408, Aug. 9, 2006]