OSM approved an amendment to Louisiana's regulatory program and abandoned mine land reclamation plan under SMCRA covering a wide range of provisions.

OSM approved an amendment to Kentucky's regulatory program under SMCRA pertaining to the disposal of coal mine waste.

EPA granted a petition submitted by Babcock & Wilcox Nuclear Operations Group, Inc., to delist a certain solid waste generated at its Mt. Athos facility near Lynchburg, Virginia, from the lists of hazardous waste.

EPA identified which nonhazardous secondary materials are to be considered "solid wastes" under RCRA.

EPA approved revisions to Texas' hazardous waste management program.

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

EPA determined that hydrofluoroolefin-1234yf is an acceptable substitute for chlorofluorocarbon-12, an ozone-depleting substance, in motor vehicle air conditioning for new passenger cars and light-duty trucks.

EPA promulgated new source performance standards and emission guidelines for commercial and industrial solid waste incineration units.

EPA finalized amendments to the NESHAPs for existing stationary spark ignition reciprocating internal combustion engines.