For detailed technical information on the Iron & Steel MACT, click here. 

Background
Under the Clean Air Act (CAA) Amendments of 1990, the U.S. Environmental Protection Agency (EPA) is required to regulate the emissions of hazardous air pollutants (HAPs) from "major sources" within specific industrial source categories. Both iron foundries and steel foundries were listed as source categories by the agency.

These standards are called "maximum achievable control technology" (MACT) standards. For existing sources MACT is determined by averaging the output of facilities in the top performing (lowest emissions) 12 percent of the industry.  MACT for new sources is based on the best controlled similar sources.

For more nearly 15 years, AFS has been working to assist EPA in understanding the metalcasting industry and to provide technical assistance on the development of our industry MACT standards. Since 1991, AFS has met with EPA on numerous occasions, assisted the agency in compiling information (including two formal industry surveys), arranged and accompanied agency officials on foundry tours, and presented a "Foundry 101" class for agency staff and contractors.

Status
On Thursday April 22, 2004 the Final Rule of the National Emission Standards for Hazardous Air Pollutants for Iron and Steel Foundries (Iron and Steel Foundry MACT) appeared in the Federal Register (Vol. 69, No. 78 page 21906). Click here for more information.

Due to industry concerns and the need to clarify several requirements, AFS filed a legal challenge against the final rule. AFS is currently in negotiations with EPA to address these issues.

Iron and Steel foundries that are major sources of Hazardous Air Pollutants will have to be in full compliance with the new standards by April 23, 2007. The Agency can grant a one-year extension but only when a company request, in writing with reasons, such an extension. These requests are only granted on a case by case basis.

If you have any questions about the Iron and Steel MACT, contact the AFS Washington Office at 202/ 842-4864.