with respect to a specified disclosure or use requested by a foreign antitrust authority and essential to a significant law enforcement objective, in accordance with the prior written consent that the Attorney General or the Commission, as the case may be, gives after—
determining that such antitrust evidence is not otherwise readily available with respect to such objective,
making the determinations described in paragraphs (2) and (3) of
section 6207(a) of this title, with respect to such disclosure or use, and
making the determinations applicable to a foreign antitrust authority under
section 6207(a)(1) of this title (other than the determination regarding the assurance described in subparagraph (A) of this paragraph), with respect to each additional governmental entity, if any, to be provided such antitrust evidence in the course of such disclosure or use, after having received adequate written assurances applicable to each such governmental entity.