origin of the product is illegal ..... ; (3) Any fish, whether fresh, frozen, or ..... otherwise prepared, if such fish was caught in a manner which the Secretary has ..... of the fish

importation of commercial fish or products from fish which have been caught ..... insist on reasonable proof from the government of any nation from which fish or ..... fish products will be exported to the United States of the effects on ..... ocean mammals of the commercial fishing technology in use for such fish or fish ..... ) except as provided in clause (ii), in the case of fish or