[Code of Federal Regulations] [Title 48, Volume 6] [Revised as of October 1, 2005] From the U.S. Government Printing Office via GPO Access [CITE: 48CFR1523.303-70] [Page 43] TITLE 48--FEDERAL ACQUISITION REGULATIONS SYSTEM CHAPTER 15--ENVIRONMENTAL PROTECTION AGENCY PART 1523_ENVIRONMENTAL, CONSERVATION, OCCUPATIONAL SAFETY, AND DRUG-FREE WORKPLACE--Table of Contents Subpart 1523.3_Hazardous Material and Material Safety Data Sec. 1523.303-70 Protection of human subjects. Contracting Officers shall insert the contract clause at 1552.223-70 when the contract involves human test subjects.