; and (ii) as a result of that expiration, no currently conforming transportation plan or transportation improvement program exists. (B) Lapses If ; and (J) by striking paragraph (10); and (5) in subsection (c) (as redesignated by paragraph (3))— (A) in the second sentence, by striking This paragraph extends to, but is not limited to, and inserting the following: (2) Applicability The authority described in paragraph (1) includes any ; and (B) by striking the subsection designation and all that follows through Federal Government and inserting the following: (c) Priority (1) Requirement Each Federal department, agency, and instrumentality . 402. Study on transportation air quality conformity under Clean Air Act The Administrators of the Environmental Protection Agency, the Federal Highway Administration, and the Federal Transit Administration shall jointly enter into an arrangement with the National Academy of Sciences under which the Academy shall— (1) conduct a study relating to transportation air quality conformity to evaluate the effectiveness of the conformity requirements under section 176 of the Clean Air Act ( 42 U.S.C. 7506 ) (as amended by section 401)