would amend the CAA with respect to NAAQS, including the 2015 ozone standards.

would amend the CAA to prohibit any regulation under the Act concerning the emissions of carbon dioxide from a fossil fuel-fired electric generating unit from taking effect until the Administrator of EPA makes certain certifications.

would provide for congressional disapproval under chapter 8 of title 5, U.S. Code, of a rule submitted by EPA relating to "Standards of Performance for Greenhouse Gas Emissions from New, Modified, and Reconstructed Stationary Sources: Electric Utility Generating Units."

would provide for congressional disapproval under chapter 8 of title 5, U.S. Code, of a rule submitted by EPA relating to "Standards of Performance for Greenhouse Gas Emissions from New, Modified, and Reconstructed Stationary Sources: Electric Utility Generating Units."

would providing for congressional disapproval under chapter 8 of title 5, U.S. Code, of EPA's final rule on ozone NAAQS.

would provide for congressional disapproval under chapter 8 of title 5, U.S. Code, of a rule submitted by EPA relating to "Carbon Pollution Emission Guidelines for Existing Stationary Sources: Electric Utility Generating Units."

would provide for congressional disapproval under chapter 8 of title 5, U.S. Code, of a rule submitted by EPA relating to "Standards of Performance for Greenhouse Gas Emissions from New, Modified, and Reconstructed Stationary Sources: Electric Utility Generating Units."

would prohibit the Administrator of EPA from proposing, finalizing, implementing, or enforcing any prohibition or restriction under CAA with respect to the emission of methane from the oil and natural gas source category.

would seek to harmonize requirements of the 2008 and 2015 ozone NAAQS.

would require the Administrator of EPA to fulfill certain requirements before regulating standards of performance for new, modified, and reconstructed fossil fuel-fired electric utility generating units.