[Code of Federal Regulations] [Title 40, Volume 12] [Revised as of July 1, 2002] From the U.S. Government Printing Office via GPO Access [CITE: 40CFR68.125] [Page 179] TITLE 40--PROTECTION OF ENVIRONMENT CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY PART 68--CHEMICAL ACCIDENT PREVENTION PROVISIONS--Table of Contents Subpart F--Regulated Substances for Accidental Release Prevention Sec. 68.125 Exemptions. Agricultural nutrients. Ammonia used as an agricultural nutrient, when held by farmers, is exempt from all provisions of this part.