Standards of Performance for New Stationary Sources and Emission Guidelines for Existing Sources: Large Municipal Waste Combustors

On December 19, 1995, EPA adopted new source performance standards (NSPS) and emission guidelines for large municipal waste combustion (MWC) units. The NSPS and emission guidelines were fully implemented by December 2000. Section 129 of the Clean Air Act (CAA) requires EPA to review, and if appropriate, revise the NSPS and emission guidelines every 5 years. In this action, EPA is proposing to revise the emission limits in the NSPS and emission guidelines to reflect the levels of performance actually achieved by the emission controls installed to meet the emission limits set forth in the December 19, 1995, NSPS and emission guidelines. The MWC NSPS and emission guidelines apply to the combustion of non-hazardous municipal solid waste. Hazardous waste combustors (incinerators) are addressed by CAA section 112 standards.