The US Coast Guard issued guidance to covered US-flag vessels for implementing the 2010 amendments to the International Convention on Standards of Training, Certification and Watchkeeping for Seafarers, 1978 relating to hours of rest and security-related training. The 2010 amendments expanded application of hours of work and rest periods for mariners to include all personnel with designated safety, prevention of pollution, and security duties onboard any vessel; changed the weekly rest hours requirements from 70 hours to 77 hours; and required the recording of hours of rest. US-flag vessels operating in foreign ports should ensure that all personnel, other than the vessel security officer (VSO), are in possession of an appropriate course completion certificate or company letter of proof showing compliance with federal regulatory requirements and Section 13 of the ISPS Code. VSOs must hold the appropriate endorsement on their credential.

This guidance comes into effect immediately and will remain in effect until replaced by regulations implementing the 2010 STCW amendments. 77 Fed. Reg. 232 (January 4, 2012).