This course explains the 1983 ‘International Convention for the Prevention of Pollution from Ships’ (also known as ‘MARPOL’). MARPOL’s Annex I covers the prevention of pollution by oil from operational measures and accidental discharges. We investigate how amendments to Annex I made it mandatory for new oil tankers to have double hulls and identify which annexes are mandatory for all MARPOL signatories and which are optional. We examine some exceptions that allow discharges before addressing the United States’ Oil Pollution Act (OPA) of 1990 to establish how the different tonnage cut-offs make it difficult to compare directly with MARPOL. We study how the sinking of the Erika off the coast of France in 1999 led to the strengthening of MARPOL requirements with respect to double hulling and inspections.The course outlines applications regulations and conditions for exemptions for segregated ballast tanks (SBT). We describe the double-hull and double-bottom requirements for oil tankers that prevent pollution from tankers carrying heavy-grade oil as cargo. We consider the accidental oil-outflow performance for tankers required after 2009 and their ‘damage assumptions’ and maximum tank-length. The course examines the damage resulting from the hypothetical outflow of oil and explains the formula for calculating its level established by assumed side and bottom damage. We analyze the conditions applications and exemptions to the size and arrangement of cargo tanks. This course breaks down the permeability of allowed space and stability concerns. We help you understand the application and importance of ‘slop tanks’ and the discharge arrangement for tankers including segregated or clean ballast the ‘ballast water management convention’ (BWM) oil/water separation interface detector draining pipelines and pumps.We take a close look at oil tanker regulations and requirements that curb marine oil pollution. We also establish the important role of the dedicated clean ballast tank system regulations crude oil washing system slop tank arrangement and oil residue (sludge) tank arrangement in preventing oil pollution from ships. The course analyzes the oil discharge monitoring and control system (ODME) tanker requirements International Maritime Organization (IMO) guidelines clean ballast tanks (CBT) ballast discharge oil-filtering equipment and flag state duties. We lay out the functions and regulations of oil/water interface detectors IMO resolutions interface detectors in-tank interface detection water discharge valves and the oil record book (ORB). Finally we address reception facilities ship certifications and environmental awareness. This course combines marine engineering marine environmental studies and maritime law to help anyone interested in learning how technology and the law can combine to keep our oceans safe from the kind of environmental disaster that can wreak devastating natural and economic damage.