; and (2) in subsection (c)(2) by striking and paragraph (23) and inserting , paragraph (23), and paragraph (25) . 4. Multipurpose noise barriers (a) In general The Secretary of Transportation shall ensure that a noise barrier constructed or preserved under section 339(b) of the National Highway System Designation Act of 1995 ( 23 U.S.C. 109 note) or with funds made available under title 23, United States Code, may be a multipurpose noise barrier. (b) State approval A State, on behalf of the Secretary, may approve accommodation of a secondary beneficial use on a noise barrier within a right-of-way on a Federal-aid highway. (c) Definitions (1) Multipurpose noise barrier The term multipurpose noise barrier means any noise barrier that provides a secondary beneficial use, including a barrier that hosts or accommodates renewable energy generation facilities, electrical transmission and distribution infrastructure, or broadband infrastructure and conduit. (2) Secondary beneficial use The term secondary beneficial use means an environmental, economic, or social benefit in addition to highway noise mitigation. 5. Aesthetics A project sponsor constructing or preserving a noise barrier under section 339(b) of the National Highway System Designation Act of 1995 ( 23 U.S.C. 109 note) or with funds made available under title 23, United States Code, shall consider the aesthetics of the proposed noise barrier, consistent with the latest version of the Noise Barrier Design Handbook published by the Federal Highway Administration of the Department of Transportation.