If we are processing oily water through our oily water separator (OWS), how far offshore must the vessel be to comply with MARPOL?
Within Regulation 15 of MARPOL Annex I there are no distance from land requirements for operation of the OWS. If your vessel is within a “Special Area”, other considerations apply. However, there are specific distance requirements for some nation’s territorial waters which you need to check depending on your vessel’s trade routes.