The fundamental principals and requirements laid in the International Regulation for the Prevention of Pollution from Ships (MARPOL): Regulations for the Prevention of Pollution by Oil, Regulations for the Control of Pollution by Noxious Liquid Substances in Bulk, prevention of Pollution by Harmful Substances Carried by Sea in Packaged Form, Prevention of Pollution by Sewage from Ships, Prevention of Pollution by Garbage from Ships, Prevention of Air Pollution from Ships.
DATA SOURCED FROM ESCO (EUROPEAN COMMISSION) & O*NET (U.S. DEPARTMENT OF LABOR)