The Obama administration announced earlier this month that it would delay release of final rules limiting carbon dioxide emissions from existing electric power plants and release proposed rules governing greenhouse gas pollution from new power plants several weeks later than originally planned.
Environmental Protection Agency assistant administrator Janet McCabe disclosed the modified schedule during a press conference on Jan. 7. She said that the regulatory issues common to both new and existing power plants dictated a simultaneous release of the respective Clean Power Plan regulations.
The agency also said it would develop a model emissions rule to be imposed on states that refuse to act on their own to regulate greenhouse gas emissions from the electricity generation sector.
Since news of the delay in release of the two Clean Power Plan rules broke, commentators have speculated that the administration is seeking to maximize the likelihood that both will survive an expected legal challenge from the industry and others. One law professor who specializes in the Clean Air Act suggested on the Legal Planet blog that EPA may be seeking to harmonize the standards applicable to new and existing coal-fired power plants, particularly those that aim to encourage use of carbon capture technology.
EPA will issue the final rule for existing coal-fired power plants and the proposed rule for new, modified, and reconstructed facilities this summer.