U.S. Code of Federal Regulations
Regulations most recently checked for updates: Aug 27, 2025
Searching within:
All TitlesTitle 46Chapter IPart 119Subpart D - Subpart D—Specific Machinery Requirements
Exit search mode at current location
Exit search mode at current location
(a) This subpart applies to all propulsion and auxiliary machinery installations of the internal combustion piston type.
(b) Where no specific fuel designation exists, the requirements of this subpart are applicable to all types of fuels and machinery.
