To minimize the risk of oil pollution in the Arctic region, the IMO has introduced a prohibition on the use and carriage of Heavy Fuel Oil (HFO) within Arctic waters. The fuels prohibited under this regulation are specified in Regulation 43.1.2 of MARPOL Annex I, and include:
- Crude oils with a density at 15°C higher than 900 kg/m³
- Oils other than crude oils, with a density at 15°C higher than 900 kg/m³ or a kinematic viscosity at 50°C higher than 180 mm²/s
- Bitumen, tar, and their emulsions
Aside from vessels involved in search and rescue, there are no exclusions or significant temporary waivers to the new requirements under Annex I. Coastal states may, however, temporarily waive the requirements within their jurisdiction, but only until July 1st, 2029. Additionally, vessels compliant with the requirements of MARPOL Annex I Regulation 12A (Oil Fuel Tank Protection) or Chapter 1 of Part II-A of the Polar Code will fall under this regulatory requirement after July 1st, 2029.
The full text of the regulation is included here.