[Code of Federal Regulations] [Title 40, Volume 15] [Revised as of July 1, 2006] From the U.S. Government Printing Office via GPO Access [CITE: 40CFR68.125] [Page 178] TITLE 40--PROTECTION OF ENVIRONMENT CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) 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.