[Code of Federal Regulations] [Title 49, Volume 2] [Revised as of October 1, 2004] From the U.S. Government Printing Office via GPO Access [CITE: 49CFR171.19] [Page 116] TITLE 49--TRANSPORTATION CHAPTER I--RESEARCH AND SPECIAL PROGRAMS ADMINISTRATION, DEPARTMENT OF TRANSPORTATION PART 171_GENERAL INFORMATION, REGULATIONS, AND DEFINITIONS--Table of Contents 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authorizations issued by the Bureau of Explosives (BOE), other than those issued under part 179 of this subchapter, are no longer valid.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]