The Isle of Man is able to accept Exhaust Gas Cleaning Systems (EGCS) as an equivalence under MARPOL Annex VI Regulation 4.1 provided that they are approved by a Recognised Organisation in accordance with the IMO guidelines within MEPC.259(68).
We have published TAN 010-19 to provide updated guidance concerning the process to have these approved as an equivalence. Section 2 also contains guidance for operators in case of EGCS malfunction.