Marine diesel engine emissions; - Marine propulsion engines (HS 840810); Environmental protection (ICS 13.020), Air quality (ICS 13.040), Marine engines and propulsion systems (ICS 47.020.20)

Marine Diesel Engine Emission Standards (14 page(s), in English)

The Environmental Protection Agency (EPA) is proposing to amend the national marine diesel engine program to provide relief provisions to address concerns associated with finding and installing certified Tier 4 marine diesel engines in certain high-speed commercial vessels. The proposed relief is in the form of additional lead time for qualifying engines and vessels. EPA is also making a technical correction to the diesel fuel regulations to allow fuel manufacturers and distributors to make distillate diesel fuel that complies with the global sulfur standard that applies internationally instead of the fuel standards that otherwise apply to distillate diesel fuel in the United States.