medical certificate · All persons employed or engaged onboard vessels to which STCW applies · onboard vessels to which STCW applies

For medical certificate, age / service condition is All persons employed or engaged onboard vessels to which STCW applies; operation / activity covered is onboard vessels to which STCW applies; occupation / regulator is merchant mariner (US Coast Guard); valid for is valid for 2 years; citation is 46 CFR 10.301, recorded from its source on 2026-08-11.

Values marked our reading are our classification of what the source says — the source does not print them in those words. The quote below is the evidence for each one; judge it yourself.

What the source says

(1) All persons employed or engaged onboard vessels to which STCW applies will be issued a medical certificate valid for 2 years unless the mariner is under the age of 18, in which case the maximum period of validity will be 1 year.

— ecfr.gov, retrieved 2026-08-11

Source

• ecfr.govhttps://www.ecfr.gov/current/title-46/chapter-I/subchapter-B/part-10/subpart-C/section-10.301

Last verified against source: 2026-08-11. Due for re-check by 2027-08-11. This page as Markdown · OKF bundle · full dataset as JSON.