[Code of Federal Regulations] [Title 40, Volume 24] [Revised as of July 1, 2006] From the U.S. Government Printing Office via GPO Access [CITE: 40CFR211.212] [Page 183] TITLE 40--PROTECTION OF ENVIRONMENT CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PART 211_PRODUCT NOISE LABELING--Table of Contents Subpart B_Hearing Protective Devices Sec. 211.212 Compliance audit testing.