; (7) in subsection (k) by striking transportation improvement program and inserting STIP each place it appears; and (8) in subsection (m) by striking transportation improvement programs and inserting STIPs . 1403. National goals and performance management measures (a) In general Section 150 of title 23, United States Code, is amended— (1) in subsection (b)— (A) by redesignating paragraph (7) as paragraph (8); and (B) by inserting after paragraph (6) the following: (7) Combating climate change To reduce carbon dioxide and other greenhouse gas emissions and reduce the climate impacts of the transportation system. ; (2) in subsection (c)— (A) in paragraph (1) by striking Not later than 18 months after the date of enactment of the MAP–21, the Secretary and inserting The Secretary ; and (B) by adding at the end the following: (7) Greenhouse gas emissions The Secretary shall establish, in consultation with the Administrator of the Environmental Protection Agency, measures for States to use to assess— (A) carbon dioxide emissions per capita on public roads; and (B) any other greenhouse gas emissions per capita on public roads that the Secretary determines to be appropriate. ; (3) in subsection (d)— (A) in paragraph (1)— (i) by striking Not later than 1 year after the Secretary has promulgated the final rulemaking under subsection (c), each and inserting Each ; and (ii) by striking and (6) and inserting (6), and (7) ; and (B) by adding at the end the following: (3) Regressive targets (A) In general A State may not establish a regressive target for the measures described under paragraph (4) or paragraph (7) of subsection (c). (B) Regressive target defined In this paragraph, the term regressive target means a target that fails to demonstrate constant or improved performance for a particular measure. ; (4) in subsection (e)— (A) by striking Not later than 4 years after the date of enactment of the MAP–21 and biennially thereafter, a and inserting A ; and (B) by inserting biennial after the Secretary a