[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: 40CFR205.58] [Page 126] TITLE 40--PROTECTION OF ENVIRONMENT CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PART 205_TRANSPORTATION EQUIP MENT NOISE EMISSION CONTROLS--Table of Contents Subpart B_Medium and Heavy Trucks Sec. 205.58 In-use requirements.