; or (2) any category of two or more projects related by project type, potential environmental impact, geographical location, or other similar project feature or characteristic. (l) Effective date (1) In general This title applies only to an environmental review or environmental decisionmaking process initiated after the date of enactment of this title. (2) Applicability of deadlines (A) In general Except as provided in subparagraph (B), in the case of a project for which an environmental review or environmental decisionmaking process is initiated before the date of enactment of this title, subsection (g) shall apply. (B) Exception Notwithstanding any other provision of this section, in determining a deadline under subsection (g), any applicable period of time shall be calculated as beginning on the date of enactment of this title. (m) Applicability Except as provided in subsection (n), this title applies to each project for which a Federal agency is required to carry out an environmental review or environmental decisionmaking process. (n) Savings clause Nothing in this section supersedes, amends, or modifies— (1) section 134, 135, 139, 325, 326, or 327 of title 23, United States Code; (2) section 5303 or 5304 of title 49, United States Code; or (3) subtitle C of title I of division A of the Moving Ahead for Progress in the 21st Century Act ( Public Law 112–141 ; 126 Stat. 527) (or any amendment made by that subtitle). . (b) Regulations (1) Council on Environmental Quality Not later than 180 days after the date of enactment of this Act, the Council on Environmental Quality established by section 202 of the National Environmental Policy Act of 1969 ( 42 U.S.C. 4342 ) shall— (A) amend the regulations contained in chapter V of title 40, Code of Federal Regulations (or successor regulations), to implement this section and the amendments made by this section