NLS Tanker

An NLS tanker is a ship constructed or adapted to carry noxious liquid substances in bulk under MARPOL Annex II. Most modern NLS tankers also meet the IBC Code and carry a combined certificate. The Annex II regime determines what residues may be discharged and where, by reference to the X, Y, Z, OS category of each cargo, and requires the Cargo Record Book and an approved Procedures and Arrangements Manual.