Gibraltar is outside of an Emission Control Area. The following advice regarding fuel sulphur is provided in Local Maritime Direction – No 022, which can be found at https://www.gibraltarship.com/ships under Local Maritime Directions (LMDs):

“2. Maximum sulphur content of marine fuel for ships operating within British Gibraltar Territorial Waters (BGTW)

“The limits for marine fuels will be reduced as from 01 January 2020 to 0.50% per mass

“3. Maximum sulphur content of marine fuel used by a ship at berth, anchored or moored within British Gibraltar Territorial Waters (BGTW) including the Port

“Ships at berth, anchor or moored within BGTW (including the Port) shall not use marine fuels which have a sulphur content that exceeds 0.1% by mass.”

EGCSA has confirmed with Gibraltar Port Authority that closed loop scrubbers and hybrid scrubbers operating in closed loop mode are permitted in Gibraltar waters, but that open loop scrubbers are temporarily not allowed as a precautionary measure until the Gibraltar Government arrives at a definitive policy decision with regards their use.

To date EGCSA has been unable to find this advice published on Gibraltar Port Authority or Gibraltar Government websites

A copy of the email with contact details redacted can be found here.