EPA proposed to approve revisions to Wisconsin's hazardous waste management program; see above for direct final rule.

SIP Proposal: Virginia (definition of a cogeneration unit)

SIP Proposal: New Mexico (1997 eight-hour NAAQS for Sunland Park through 2014; see above for direct final rule).

EPA approved negative declarations and requests for EPA withdrawal of its CAA §§111(d) and 129 plan approval for HMIWI, large municipal waste combustor (LMWC), small municipal waste combustor (SMWC), and other solid waste incinerator (OSWI) units from Florida, Kentucky, North Carolina, and South Carolina.

EPA promulgated amendments to the new source performance standards and emissions guidelines for hospital/medical/infectious waste incinerators (HMIWIs) after remand by the D.C. Circuit.

EPA proposed NESHAPs from coal- and oil-fired electric utility steam-generating units and revised NSPS for fossil fuel-fired units.

OSM approved an amendment to Montana's regulatory program under SMCRA regarding bond release responsibility periods for water management facilities and other support facilities.

OSM approved an amendment to Alabama's regulatory program under SMCRA regarding license fees, annual license updates, and blaster certification fees.

EPA withdrew rulemaking that granted a site-specific treatment variance to U.S. Ecology Nevada in Beatty, Nevada, and withdrew an existing site-specific treatment variance issued to Chemical Waste Management, Inc. in Kettleman Hills, California, due to adverse comment.

EPA approved revisions to Wisconsin's hazardous waste management program.