[Code of Federal Regulations] [Title 49, Volume 2] [Revised as of October 1, 2006] From the U.S. Government Printing Office via GPO Access [CITE: 49CFR171.19] [Page 120] TITLE 49--TRANSPORTATION CHAPTER I--PIPELINE AND HAZARDOUS MATERIALS SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION PART 171_GENERAL INFORMATION, REGULATIONS, AND DEFINITIONS--Table of Sec. 171.19 Approvals or authorizations issued by the Bureau of Explosives. Effective December 31, 1998, approvals or authorizations issued by the Bureau of Explosives (BOE), other than those issued under part 179 of this subchapter, are no longer valid. [63 FR 37459, July 10, 1998]