; (ii) allow the public comment period for the rule to remain open for a period of not less than 30 days; and (iii) if, during the 30-day period described in clause (ii), the head of the Federal agency determines that the certification and statement providing the factual basis should be modified, shorten or eliminate the 30-day period. (D) (i) Not later than 30 days after the date on which the Chief Counsel submits to the head of a Federal agency an advisement letter under subparagraph (A), the Federal agency shall submit to the Chief Counsel and publish in the Federal Register and on the website of the Federal agency the results of the review and reconsideration. (ii) If, after conducting the review and reconsideration under subparagraph (A), the head of the Federal agency determines— (I) that there was not a sufficient factual basis to support the certification, the Federal agency shall perform and publish in the Federal Register an initial regulatory flexibility analysis under section 603, with an opportunity for public comment, before promulgating the final rule; (II) that the certification was appropriate but the factual basis was inadequate to support the certification, the Federal agency shall revise the factual basis to support the certification; or (III) that the certification was appropriate and the factual basis was adequate to support the certification, the Federal agency may continue with the rule making. . 3. Judicial review Section 611(a) of title 5, United States Code, is amended— (1) in paragraph (1), by striking 605(b) and inserting 605(b)(1) ; and (2) in paragraph (2), by striking 605(b) and inserting 605(b)(1) .