CCS/HCS/SCS/SB 664 - This act modifies provision relating to natural resources. NEW TIRE FEE (Section 260.273) - This act extends the expiration date for the fee imposed on new tires sold in this state from 2015 to 2020. This provision is identical to HB 1953 (2014) and is similar to SB 968 (2014) and SS/SCS/HCS/HB 1302 (2014). AIR CONSERVATION COMMISSION (Section 643.055) - This act bans the Department of Natural Resources from regulating the manufacturing, performance, or use of residential wood burning heaters through a state implementation plan unless authorized by the General Assembly and approved by the Joint Committee on Administrative Rules. Under this act, any new regulations on such wood burning heaters shall not apply to existing heaters. This provision is identical to HCS/HB 1302 (2014). AIR CONSERVATION COMMISSION (Section 643.640) - This act requires the Air Conservation Commission to develop carbon dioxide emission standards for existing generation plants. In developing such standards, the Commission shall consider the remaining useful life of the existing plant and the overall economic impact of implementing new emission standards. The Commission may develop emission standards less stringent, but not more stringent, than federal emission guidelines, or longer compliance schedules than those required by federal regulations based upon certain factors as set forth in this act. This provision is identical to SCS/HCS/HB 1631 and is similar to SB 965 (2014). CLEAN WATER COMMISSION (Section 644.058) - This act modifies the authority of the Clean Water Commission so that it may only revise water quality standards upon completion of an assessment by the Department of Natural Resources finding that there is an environmental need for such revision. In implementing revised water quality standards modifications of 25% or more, the Department of Natural Resources shall also conduct an evaluation as set forth in this act. The Department shall use these evaluations in making site-specific permit decisions. This provision is identical to a provision contained in SCS/SB 968 (2014) and is similar to HCS/HB 1074 (2014). PUBLICLY OWNED TREATMENT WORKS (Section 644.145) - When issuing permits that incorporate a new requirement for discharges from a publicly owned treatment works facility, the Department of Natural Resources shall make a finding of affordability on the costs to be incurred and the impact of any rate changes on ratepayers. This act defines "finding of affordability" and modifies the definition of "affordability". The finding of affordability shall be based upon certain criteria as set forth in this act. Further, this act requires that the Department of Natural Resources file an annual report with the Governor and certain members of the General Assembly on findings of affordability completed in the previous calendar year. The report shall contain certain criteria as set forth in this act. This provision is identical to a provision contained in SS/SCS/HCS/HB 1302 (2014) and SCS/SB 968 (2014). KAYLA CRIDER