(2) Marine mammals may be taken incidentally in the course of commercial fishing operations and permits may be issued therefor under section 1374 of this title subject to regulations prescribed by the Secretary in accordance with section 1373 of this title , or in lieu of such permits, authorizations may be granted therefor under section 1387 of this title , subject to regulations prescribed under that section by the Secretary without regard to section 1373 of this title . Such authorizations may be granted under subchapter IV with respect to purse seine fishing for yellowfin tuna in the eastern tropical Pacific Ocean, subject to regulations prescribed under that subchapter by the Secretary without regard to section 1373 of this title . In any event it shall be the immediate goal that the incidental kill or incidental serious injury of marine mammals permitted in the course of commercial fishing operations be reduced to insignificant levels approaching a zero mortality and serious injury rate. The Secretary of the Treasury shall ban the importation of commercial fish or products from fish which have been caught with commercial fishing technology which results in the incidental kill or incidental serious injury of ocean mammals in excess of United States standards. For purposes of applying the preceding sentence, the Secretary— (A) shall 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 products exported from such nation to the United States; (B) in the case of yellowfin tuna harvested with purse seine nets in the eastern tropical Pacific Ocean, and products therefrom, to be exported to the United States, shall require that the government of the exporting nation provide documentary evidence that— (i) (I) the tuna or products therefrom were not banned from importation under this paragraph before the effective date of section 4 of the International Dolphin Conservation Program Act; or (II) the tuna or products therefrom were harvested after the effective date of section 4 of the International Dolphin Conservation Program Act by vessels of a nation which participates in the International Dolphin Conservation Program, and such harvesting nation is either a member of the Inter-American Tropical Tuna Commission or has initiated (and within 6 months thereafter completed) all steps required of applicant nations, in accordance with article V, paragraph 3 of the Convention establishing the Inter-American Tropical Tuna Commission, to become a member of that organization; (ii) such nation is meeting the obligations of the International Dolphin Conservation Program and the obligations of membership in the Inter-American Tropical Tuna Commission, including all financial obligations; and (iii) the total dolphin mortality limits, and per-stock per-year dolphin mortality limits permitted for that nation’s vessels under the International Dolphin Conservation Program do not exceed the limits determined for 1997, or for any year thereafter, consistent with the objective of progressively reducing dolphin mortality to a level approaching zero through the setting of annual limits and the goal of eliminating dolphin mortality, and requirements of the International Dolphin Conservation Program; (C) shall not accept such documentary evidence if— (i) the government of the harvesting nation does not provide directly or authorize the Inter-American Tropical Tuna Commission to release complete and accurate information to the Secretary in a timely manner— (I) to allow determination of compliance with the International Dolphin Conservation Program; and (II) for the purposes of tracking and verifying compliance with the minimum requirements established by the Secretary in regulations promulgated under section 1385(f) of this title ; or (ii) after taking into consideration such information, findings of the Inter-American Tropical Tuna Commission, and any other relevant information, including information that a nation is consistently failing to take enforcement actions on violations which diminish the effectiveness of the International Dolphin Conservation Program, the Secretary, in consultation with the Secretary of State, finds that the harvesting nation is not in compliance with the International Dolphin Conservation Program. (D) shall require the government of any intermediary nation to certify and provide reasonable proof to the Secretary that it has not imported, within the preceding six months, any yellowfin tuna or yellowfin tuna products that are subject to a direct ban on importation to the United States under subparagraph (B); (E) shall, six months after importation of yellowfin tuna or tuna products has been banned under this section, certify such fact to the President, which certification shall be deemed to be a certification for the purposes of section 1978(a) of title 22 for as long as such ban is in effect; and (F) (i) except as provided in clause (ii), in the case of fish or products containing fish harvested by a nation whose fishing vessels engage in high seas driftnet fishing, shall require that the government of the exporting nation provide documentary evidence that the fish or fish product was not harvested with a large-scale driftnet in the South Pacific Ocean after July 1, 1991 , or in any other water of the high seas after January 1, 1993 , and (ii) in the case of tuna or a product containing tuna harvested by a nation whose fishing vessels engage in high seas driftnet fishing, shall require that the government of the exporting nation provide documentary evidence that the tuna or tuna product was not harvested with a large-scale driftnet anywhere on the high seas after July 1, 1991 . For purposes of subparagraph (F), the term “driftnet” has the meaning given such term in section 4003 of the Driftnet Impact Monitoring, Assessment, and Control Act of 1987 ( 16 U.S.C. 1822 note), except that, until January 1, 1994 , the term “driftnet” does not include the use in the northeast Atlantic Ocean of gillnets with a total length not to exceed five kilometers if the use is in accordance with regulations adopted by the European Community pursuant to the October 28, 1991 , decision by the Council of Fisheries Ministers of the Community.