EPA proposed revisions to the unregulated contaminant monitoring regulation for public water systems.

EPA entered into a proposed administrative settlement under CERCLA that requires the settling party to pay U.S. response costs incurred at the Puckett Smelter Superfund site in Mountainboro, Alabama.

EPA issued a final rule requiring monitoring and reporting of greenhouse gas (GHG) emissions from additional sources of fluorinated GHGs.

The Agricultural Marketing Service proposed revisions to the Federal Seed Act to update regulations and to prevent potential conflicts with states.

EPA approved the Gila River Indian Community's tribal implementation plan to regulate air quality within the exterior boundaries of the tribe's reservation.

EPA promulgated new source performance standards and emission guidelines for sewage sludge incineration units located at wastewater treatment facilities.

EPA stayed the requirement for chemical manufacturing area sources to comply with the Title V permit program during reconsideration of certain NESHAP provisions.