(Reuters) - The U.S. Environmental Protection Agency, struggling with an ambitious agenda on clean air regulations, said it will delay proposing the country's first-ever greenhouse gas limits on oil refineries.
The delay is the latest setback for the agency's new raft of clean air rules on everything from smog to mercury pollution that are heavily opposed by industry.
The EPA had been required to propose the rules on refineries by mid-December, as part of a court settlement with states and environmental groups.
"EPA expects to need more time to complete work on greenhouse gas pollution standards for oil refineries," a spokeswoman for the agency said. The EPA is working with the litigants to develop a new schedule to replace the current mid-December date for a rule proposal, she added.
The EPA made the comments after sources on both sides of the issue told Reuters the agency would not make the deadline.
The EPA has not told refiners exactly how it plans to cut emissions, and that figuring out how to do so is taking additional time, an oil industry source said.
"How they are going to regulate greenhouse gases, they are not sharing that with us," the source said.
The petroleum industry says it is more difficult to cut emissions from refineries than it is from power plants, the EPA's top target of emissions. Many power utilities can switch from coal, which emits large amounts of carbon dioxide when burned, to burning cleaner natural gas. Refineries, however, mostly already run on natural gas, they argue.
