; or (9) for climate research at the Office of Research and Development of the Environmental Protection Agency. (b) Definition of greenhouse gas In this Act, the term greenhouse gas means any of carbon dioxide, methane, nitrous oxide, sulfur hexafluoride, hydrofluorocarbons, and perfluorocarbons. 5. Termination of certain EPA programs (a) National Clean Diesel Campaign The Environmental Protection Agency’s National Clean Diesel Campaign is hereby terminated. (b) Environmental Justice programs The Environmental Protection Agency’s environmental justice programs are hereby terminated. 6. Elimination of EPA regional offices The Administrator of the Environmental Protection Agency shall discontinue operation and maintenance of the Environmental Protection Agency’s State, regional, district, local, and other field offices, and activities carried out through those offices. 7. Disposal or leasing of underutilized property required (a) Disposal or leasing required The Administrator of the Environmental Protection Agency shall dispose of or lease any property determined by the Office of Inspector General of the Environmental Protection Agency to be underutilized in the report entitled EPA Can Further Reduce Space in Under-Utilized Facilities dated February 20, 2013. (b) Fair market value requirement Real property sold pursuant to this section shall be sold at not less than the fair market value as determined by the Administrator. Costs associated with disposal may not exceed the fair market value of the property unless the Administrator approves incurring such costs. (c) Monetary Proceeds Requirement Real property may be sold pursuant to this section only if the property will generate monetary proceeds to the Federal Government, as provided in subsection (b). Disposal of real property pursuant to this section may not include any exchange, trade, transfer, acquisition of like-kind property, or other non-cash transaction as part of the disposal. (d) Rule of Construction Nothing in this section shall be construed as