US lawFederal (United States)RegulationsTitle 40 CFR — Protection of EnvironmentChapter I — ENVIRONMENTAL PROTECTION AGENCYPart 68 — CHEMICAL ACCIDENT PREVENTION PROVISIONSSubpart F — Regulated Substances for Accidental Release Prevention68.12540 C.F.R. § 68.125Exemptions.Last amended: 2016Year: 2026Length: 20 wordsOfficial source Cite as 40 C.F.R. § 68.125 (2026)Agricultural nutrients. Ammonia used as an agricultural nutrient, when held by farmers, is exempt from all provisions of this part.Previous40 C.F.R. § 68.120Next40 C.F.R. § 68.126