National Emission Standards for Hazardous Air Pollutants: Aluminum Foundry and Aluminum Die Casting Operations; Source Category List

Riepilogo

The Clean Air Act (CAA) requires EPA to list (for regulation under section 112 of the CAA) all categories of major sources of hazardous air pollutants (HAP) and categories of area sources if they present a threat of adverse effects to human health or the environment. We have recently promulgated national emission standards for hazardous air pollutants (NESHAP) for Secondary Aluminum Production, (65 FR 15690, March 23, 2000). This ANPR announces our intention to propose amendments to subpart RRR to remove aluminum foundries and aluminum die casting facilities from the Secondary Aluminum Production source category. As part of the same rulemaking, we intend to make a new determination concerning maximum achievable control technology (MACT) requirements for both major sources and area sources in these industries. The EPA previously listed aluminum foundries and aluminum die casting facilities as part of the Secondary Aluminum Production source category and also listed area sources in these industries for regulation pursuant to CAA section 112(c)(6). Area sources are included in the NESHAP due to dioxin and furan emissions. We intend to make a new determination concerning MACT requireme