In view that the revised MARPOL Annex I came into force on 1 January 2007, as did the amendments to CAS by resolution MEPC.131(53), the purpose of this publication is to provide an easy reference to the up-to-date provisions of CAS, including incorporation of all of the amendments that have been adopted by the MEPC, up to and including the amendments adopted by resolution MEPC.131(53).