STCW deadlines have arrived for STCW-credentialed mariners as well as mariners renewing their credentials. As of January 1, 2017, mariners will have had to update their credentials (“close the gaps”) to continue sailing under the authority of STCW 2010. However, for those who could not meet that deadline, all is not lost. While the STCW portion of their credential will not be valid in 2017, they need only submit course completion certificates and/or the appropriate assessments sheets to NMC for the credential to be resuscitated and the limitations lifted. The National Credential will not be affected by these requirements. Personnel serving on uninspected fishing vessels, vessels operating only on Inland Waters and vessels less than 100 GT are not required to comply with STCW.