[Code of Federal Regulations] [Title 49, Volume 4] [Revised as of October 1, 2002] From the U.S. Government Printing Office via GPO Access [CITE: 49CFR229.43] [Page 299] TITLE 49--TRANSPORTATION CHAPTER II--FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF TRANSPORTATION PART 229--RAILROAD LOCOMOTIVE SAFETY STANDARDS--Table of Contents Subpart C--Safety Requirements Sec. 229.43 Exhaust and battery gases. (a) Products of combustion shall be released entirely outside the cab and other compartments. Exhaust stacks shall be of sufficient height or other means provided to prevent entry of products of combustion into the cab or other compartments under usual operating conditions. (b) Battery containers shall be vented and batteries kept from gassing excessively.