Note: This text incorporates the original text as amended by the following amendments adopted by the indicated IMO Assembly resolutions: 1981 amendments (A.464(XII)), in force 1 June 1983; 1987 amendments (A.626(15)), in force 19 November 1989; 1989 amendments (A.678(16)), in force 19 April 1991; 1993 amendments (A.736(18)), in force 4 November 1995; 2001 amendments (A.910(22)), in force 29 November 2003, 2007 amendments (A.1004(25)), in force 01 December 2009; 2013 amendments (A.1085(28)) in force 01 January 2016.