40 CFR § 180.1142
1,4-Dimethylnaphthalene; exemption from the requirement of a tolerance
June 9, 2020
An exemption from the requirement of a tolerance is established for the residues of the plant growth regulator, 1,4-dimethylnaphthalene (1,4-DMN), when applied postharvest to all sprouting root, tuber, and bulb crops in accordance with good agricultural practices.
[77 FR 68697, Nov. 16, 2012]