; (B) including the list in a regulatory flexibility agenda under section 602 of title 5, United States Code; or (C) providing the list in a regulatory planning document; and (2) the Inspector General of the Department of Transportation shall make publicly available on the website of the Office of the Inspector General a list of each open safety recommendation made by the Inspector General regarding pipeline safety or hazardous materials safety. . 7. Public availability of Secretary of Transportation's responses to safety recommendations Section 1135 of title 49, United States Code, is amended— (1) by amending subsection (a) to read as follows: (a) Safety transportation recommendations (1) In general Not later than 90 days after the date that the Secretary of Transportation receives a recommendation about transportation safety from the National Transportation Safety Board, the Secretary shall submit to the Board a formal written response to the recommendation. (2) Contents Each response under paragraph (1) shall indicate whether the Secretary intends— (A) to carry out procedures to adopt the complete recommendation; (B) to carry out procedures to adopt a part of the recommendation; or (C) to refuse to carry out procedures to adopt the recommendation. ; (2) by amending subsection (b) to read as follows: (b) Timetable for completing procedures and reasons for refusals A response under— (1) subparagraph (B) or subparagraph (C) of subsection (a)(2) shall include a copy of a proposed timetable for completing the procedures; (2) subsection (a)(2)(B) shall detail the reasons for the refusal to carry out procedures on the remainder of the recommendation; and (3) subsection (a)(2)(C) shall detail the reasons for the refusal to carry out procedures. ; (3) in subsection (c), by striking a copy of each recommendation and response available to the public at reasonable cost and inserting publicly available on its website each recommendation and response under subsection (a)