The national South Korean sulfur restrictions will apply to the following six ports, and a national sulphur emission control area has been defined for each port:
- Busan port.
- Incheon port.
- Ulsan port.
- Yeosu port.
- Gwangyang port (including Hadong port).
- Pyeongtaek-Dangjin port.
Initially, from 1 September 2020, ships will have to switch to fuel oil not exceeding a sulfur content of 0.10% from 1 hour after completion of anchoring or mooring to 1 hour before completion of heaving up the anchor or de-berthing.
From 1 January 2022, the requirement within the national sulphur emission control areas will be tightened and ships will have to switch to fuel oil not exceeding a sulfur content of 0.10% from entering national sulphur emission control areas until having left.
