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Seafarer Index

United States cabotage

Jones Act (Merchant Marine Act of 1920, section 27)

Citizenship requirement
US-owned + US-built + US-flagged + US-crewed (75% US citizens; master + all officers must be US)
Vessel flag required
US-flag only
Officer quota
100% US-citizen officers + 75% US-citizen ratings
Wage effect
US-flag Jones Act seafarer wages 2-3× international rates; strong SIU + MEBA CBAs

Notes

One of the strictest cabotage regimes. Applies to all US domestic trades including Alaska, Hawaii, Puerto Rico, Guam. Waivers rare + politically fraught (e.g. temporary post-hurricane fuel-supply waivers). Recent 2020 waiver for Ever Forward + 2022 for LNG were highly contested.