33 U.S.C. § 2707: Recovery by foreign claimants

the claimant has not been otherwise compensated for the removal costs or damages; and recovery is authorized by a treaty or executive agreement between the United States and the claimant’s country, or the Secretary of State, in consultation with the Attorney General and other appropriate officials, has certified that the claimant’s country provides a comparable remedy for United States claimants. Paragraph (1)(B) shall not apply with respect to recovery by a resident of Canada in the case of an incident described in subsection (b)(4). an Outer Continental Shelf facility or a deepwater port; a vessel in the navigable waters; a vessel carrying oil as cargo between 2 places in the United States; or a tanker that received the oil at the terminal of the pipeline constructed under the Trans-Alaska Pipeline Authorization Act ( 43 U.S.C. 1651 et seq.), for transportation to a place in the United States, and the discharge or threat occurs prior to delivery of the oil to that place. a person residing in a foreign country; the government of a foreign country; and an agency or political subdivision of a foreign country.