The use of High Sulphur Fuel Oil (HSFO) with an Open-Loop Exhaust Gas Cleaning System (EGCS) at 0.5% or 0.1% sulphur mode setting is prohibited until further notice for the ships entering Saudi Arabian ports.

All ships entering Aramco ports shall comply with one of the following options:

1. Use compliant fuel oil (≤ 0.50% m/m Sulphur, or ≤ 0.10% when operating in ECAs, if applicable).
2. Operate the EGCS in Closed-Loop mode (or Hybrid system in Closed mode), with strict prohibition on the discharge of wash water into the sea.

For further details, operators shall contact the vessel agent.

Source: GAC