[Code of Federal Regulations] [Title 40, Volume 29] [Revised as of July 1, 2007] From the U.S. Government Printing Office via GPO Access [CITE: 40CFR442.20] [Page 439] TITLE 40--PROTECTION OF ENVIRONMENT CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PART 442_TRANSPORTATION EQUIPMENT CLEANING POINT SOURCE CATEGORY --Table of Contents Subpart B_Rail Tank Cars Transporting Chemical and Petroleum Cargos Sec. 442.20 Applicability. This subpart applies to discharges resulting from the cleaning of rail tank cars which have been used to transport chemical or petroleum cargos. [[Page 440]]