40 CFR §158.270
Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
All residue chemistry data, as described in § 158.1410, are required for an experimental use permit for which a temporary tolerance under FFDCA section 408(r) is sought. Residue chemistry data are not required for an experimental use permit issued on a crop-destruct basis.