; (2) in subsection (b) by striking coordinated and expedited environmental review process requirements set forth in this section and inserting project development procedures described in subsection (a) ; and (3) by striking subsections (c) through (m) and inserting the following: (c) Efficient environmental reviews (1) Regulations and procedures In carrying out subsection (a), the Secretary shall incorporate into agency regulations and procedures pertaining to airport or aviation projects described in subsection (b) aspects of such project development procedures, or portions thereof, determined appropriate by the Secretary in a manner consistent with this section, that increase the efficiency of the review of such projects. (2) Discretion The Secretary may choose not to incorporate into agency regulations and procedures pertaining to airport or aviation projects described in subsection (b) such project development procedures that could only feasibly apply to highway projects, public transportation capital projects, and multimodal projects. (3) Applicability Subsection (l) of section 139 of title 23 shall apply to airport or aviation projects described in subsection (b). (d) Additional categorical exclusions The Secretary shall maintain and make publicly available, including on the Internet, a database that identifies project-specific information on the use of a categorical exclusion on any airport or aviation project carried out under this title. . 4. Efficient environmental reviews Section 24201(a)(4) of title 49, United States Code, is amended by striking , except that the limitation on claims of 150 days shall be 2 years .