EPA establishes an exemption from the requirement of a tolerance for residues of urea-formaldehyde copolymer (CAS Reg. No. 9011-05-6) when used as an inert ingredient in pesticide formulations applied to growing crops only under 40 CFR 180.1001(d) to include uses as a solid diluent, filler, and/or carrier and to modify the minimum molecular weight from 30,000 to 20,000. Ciba-Geigy Corp. requested this regulation pursuant to the Federal Food, Drug and Cosmetic Act.