[Code of Federal Regulations] [Title 40, Volume 30] [Revised as of July 1, 2004] From the U.S. Government Printing Office via GPO Access [CITE: 40CFR792.83] [Page 40-41] TITLE 40--PROTECTION OF ENVIRONMENT CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PART 792_GOOD LABORATORY PRACTICE STANDARDS--Table of Contents Subpart E_Testing Facilities Operation Sec. 792.83 Reagents and solutions. All reagents and solutions in the laboratory areas shall be labeled to indicate identity, titer or concentration, [[Page 41]] storage requirements, and expiration date. Deteriorated or outdated reagents and solutions shall not be used.