Commercial Marine Vessels

This page last June 06, 2018


Marines Vessels This area of the Off-Road Mobile Sources website pertains to regulatory activities to reduce diesel particulate matter (PM), oxides of nitrogen (NOx), and sulfur oxide (SOx) emissions from commercial marine vessels, which includes both ocean-going ships and commercial harbor craft. To find out more about the various regulatory activities and related information pertaining to harbor craft and ocean-going vessels, please see the links to the left and below. ship

What's New 

Posted May 11, 2018


Posted August 1, 2017

  • Marine Notice 2017-1 has been issued providing guidance for the use of the “Temporary Experimental or Research Exemption” in the California Ocean-Going Vessel Fuel Regulation.   
  • You're invited to participate in public workshops held on August 28, 2017, in Los Angeles and September 7, 2017, in Sacramento, to discuss proposed amendments to the Airborne Toxic Control Measure for Auxiliary Diesel Engines Operated on Ocean-Going Vessels At-Berth in a California Port (At-Berth Regulation).  Details are available in the workshop notice linked below, and additional meeting materials will be posted here prior to the meeting.

Posted October 28, 2015

  • Guidance for Vessel Operators Utilizing the Research Exemption to Use Fuel at or Below 0.1% Sulfur That Does Not Meet Specifications for Distillate Fuel Grades in the California OGV Fuel Rule   

Posted August 8, 2014

  • Marine Notice 2014-1 has been issued providing guidance that will allow vessels to comply with the California Ocean-Going Vessel Fuel Regulation when they are complying with the North American Emission Control Area using alternative emission control technologies or non-distillate low sulfur (≤ 0.1% S) marine fuels.