USCG-STCW-DECK-L4.2
Renewal and revalidation
USCG-STCW-DECK-M4 · Equipment, Renewal and Service Credit · USCG-STCW-DECK-M4-A ARPA, ECDIS and GMDSS limitations, revalidation, near-coastal limits and service credit.
An STCW deck endorsement lives and dies with the **MMC** it is printed on, but renewing the MMC does not by itself renew the STCW competences.
AI-drafted catalogue content pending SME review. STCW deck endorsements depend on vessel GT, route and equipment and on an individual NMC evaluation of sea service and assessments, so no pathway here is a guarantee of issue; verify with the National Maritime Center and the current NMC checklists before applying.