The IMO STCW 2010 Manila Exceptions are conditional relaxations of the core IMO STCW 2010 rest hours regulations. There are two possible relaxations: Weekly • The minimum hours of rest in any 7 day period may be reduced from 77h to 70h for a period of up to 2 consecutive weeks. Once used, the seafarer may then not use the exception again for twice the period of exception. For example, if using the exception for 2 consecutive weeks, the exception may not then be used for the following 4 weeks. Daily • The minimum of 10 hours of rest in any 24h period may be made up of 3 rest periods, one of which must be at least 6h in length and the other two periods must be at least 1h in length. • This exception can be used for a maximum of 2 x 24h periods in any 7 day period. Manila exceptions can be used together or separately. The Manila Exceptions may only be used on vessels where the flag state permits their use, and where collective bargaining agreements are in place (with written evidence on board) to permit their use.