There’s a multi-national listing (/w links), including USA “Jones Act*”, of maritime crew (seaman) law at:
“Merchant Shipping Acts and Seafarers’ Legislation”
http://www.ilo.org/ilolex/english/cprofiles/MarLex.htm
* The Jones Act, 46 U.S.C. 688 (1970), is an Act of Congress, which governs the liability of vessel operators and marine employers for the work-related injury or death of an employee.