; and (2) the liability of that employer under such Act to the master or crew member, or to any person otherwise entitled to recover damages from the employer based on the injury, disability, or death of the master or crew member, shall be exclusive and in lieu of all other liability. . (c) Minimum requirements All vessels, whether documented in the United States or not, operating in the coastwise trade of the United States shall be subject to minimum international labor standards for seafarers under international agreements in force for the United States, as determined by the Secretary of Transportation on the advice of the Secretaries of Labor and Defense. 5. Regulations regarding vessels (a) Applicable minimum requirements Except as provided in subsection (b), the minimum requirements for vessels engaging in the transportation of cargo or merchandise in the United States coastwise trade shall be the recognized international standards in force for the United States (as determined by the Secretary of the department in which the Coast Guard is operating, in consultation with any other official of the Federal Government that the Secretary determines to be appropriate). (b) Consistency in application of standards In any case in which any minimum requirement for vessels referred to in subsection (a) establishes a lower standard than a minimum that is applicable to vessels that are documented in a foreign country and that are admitted to engage in the transportation of cargo and merchandise in the United States coastwise trade, the standard applicable to such vessels that are documented in a foreign country shall be the standard to be applied to United States documented vessels. 6. Environmental standards All vessels, whether documented under the laws of the United States or not, engaging in the United States coastwise trade shall comply with all applicable United States and international environmental standards in force for the United States. 7. Requirements for certain noncitizens irregularly engaging in domestic