Originally Posted by rickair7777

I think they have to make an exception for non-citizens. Otherwise they would be banning green-card holders from right-to-work, which is illegal.

A non-citizen cannot have a US passport (one exception which does not apply here), so instead they would need a passport from their home country, with whatever visas, waivers, etc needed to enter Canada, Mexico, and Bahamas. Unless you're from someplace sketchy, it should be fairly easy to access those countries, especially as a US-based crew member.

So all you need is a green card and a passport from somewhere else (hopefully not N. Korea).