; (B) to expand access to diesel particulate filters; (C) to provide vehicle manufacturers with low-emission engine designs; (D) to develop other mitigation activities, including energy efficiency alternatives for generators and industrial processes; and (E) to reduce ammonia emissions from agriculture. 6. Global reductions in high-GWP fluorinated gases (a) Sense of Congress regarding Energy Star It is the sense of Congress that the Administrator, in cooperation with the Secretary of Energy, should consider modifications to the Energy Star program established under section 324A of the Energy Policy and Conservation Act ( 42 U.S.C. 6294a ) to include refrigerant systems that— (1) achieve best-in-class energy efficiency savings; and (2) use next generation technologies for refrigerants and foam-blowing agents. (b) Report (1) In general Not later than 2 years after the date of enactment of this Act, the National Academies of Sciences, Engineering, and Medicine, in collaboration with the Administrator, the Secretary of Energy, the Secretary of Transportation, and the National Institute of Standards and Technology, shall submit to the Congress and publish a report that— (A) identifies and evaluates substitute technologies, products, practices, and processes for fluorinated compounds on a sector-by-sector basis for the sectors described in paragraph (2); (B) identifies and describes the legal, regulatory, technical, and other barriers to the development and broader deployment of substitutes for fluorinated compounds within the sectors described in paragraph (2) and subsectors therein in which such fluorinated compounds are produced, used, and emitted; (C) includes recommendations regarding any changes in Federal law, regulation, guidance, and practice that can lower, avoid, or eliminate the barriers identified in subparagraph (B)