• A minimum of 6 continuous rest hours in any 24 hour period • A maximum of 14 total work hours in any 24 hour period • A maximum of 72 total work hours in any 7 day period The minimum of 10 hours rest in any 24 hour period may be divided into no more than 2 periods, one of which shall be at least 6 hours in length, and the interval between consecutive periods of rest shall not exceed 14 hours. STCW 2010 applies to all persons who are assigned duty as an officer in charge of a watch or as a rating forming part of a watch (watchkeepers) and those whose duties involve designated safety, prevention of pollution and security duties.