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 coastwise trade (a) In general Each person or entity that is not a citizen of the United States, as defined in section 104 of title 46, United States Code, that owns or operates vessels that irregularly engage in the United States domestic coastwise trade shall— (1) name an agent upon whom process may be served