This bulletin outlines Transport Canada’s policy on compliance with the IMO Tier III nitrogen oxides emission standards set out in the Vessel Pollution and Dangerous Chemicals Regulations (the Regulations).
This bulletin applies to Canadian vessels that:
Transport Canada will not require compliance with the IMO Tier III nitrogen oxides emission standards set out in subsection 110.3 (4) of the Regulations for marine engines installed on Canadian vessels that are equal to or under 15 metres in length with a combined nameplate diesel engine propulsion power of less than 750 kW, whether for repowering or in new construction.
Rather, these marine diesel engines will have to comply with the IMO Tier II NOx emission standards set out in subsection 110.2 (3) of the Regulations, provided the engine satisfies the application requirements set out in subsection 110.2 (1) of the Regulations.
This policy will be in place until Dec 31, 2022 when Transport Canada will conduct a review of the marine engine technology to determine if advancements enable small marine engines to meet the IMO Tier III emission standards without the use of SCR or with smaller emission control technology.