Environmental Protection Agency officials ignored requests from the Office of Management and Budget to include a more realistic cost range for implementing stringent coal regulations for new coal plants, according to emails released by regulations.gov.

Prior to the EPA releasing its New Source Performance Standards, which would severely limit the building of new coal-fired power plants due to a requirement for those plants to include carbon capture and storage technology, the OMB raised multiple questions regarding the implementation of the regulations, including cost and feasibility of the technology.