Title III - Hazardous Air Pollutants

10-Year Lead Acid Battery Manufacturing Delisted 

Under Section 112 of Title III of the CAA of 1990, EPA will regulate all major sources and area sources deemed appropriate. A major source is a stationary source located within a contiguous area under common control that emits or has the potential to emit 9.1 Mg/yr (10 tons/yr) of a single HAP or 23.7 Mg/yr (25 tons/yr) of a combination of HAPs. An area source is a non-major stationary source. Under Section 112, EPA is required to promulgate 40 categories by 1992, 25 percent of the listed categories by 1994, an additional 25 percent 

A not legally 1] nd ng process, called PMACT.isusedto estimate MACT in a shortpeiiod of time using readily available data. The PMACT helps identify data ps and states and local agencies in case by-case MACT determinations. 

The CAA provides for potential delays in the promulgation of MACTs for major HAP sourees i.e., Section 112(j). This is known also as the MACT Hammer. This provision requires major HAP sources to apply for a permit 18 months after the MACT standard scheduled promulgation date. The State must then make a case-by-case determination of MACT for the source. If the delayed MACT standard is later promulgated, the permit will be revised to reflect any new emission limitation requirements and the affected source may be given up to 8 years to comply.  

A not legally bditAng process, called PMACT, isusedto estimate MACT in a short peiiod of lima using rsadily available data The PMACT helps identify data gaps and states ndloeeltgeneies in case-by case MACT detenninaLons. 

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U.S. Congress. 1990. Clean Air Act amendments. Title III, Hazardous Air Pollutants, Section 112, Hazardous Air Pollutants as Amended, October 26, 1990. One Hundred and First Congress of the United States of America, 2nd Session Report 101-952. 

David J. EvansI ] of the University of Wisconsin-Stout wrote an article published in the June 1992 SSA Journal (Semiconductor Safety Association) entitled An Examination of the Air Toxics Proposals of the Clean Air Act Amendments and their Effects on the Semiconductor Industry. This article gives an excellent analysis of the potential impact of the Clean Air Act, Title III (hazardous air pollutants) and Title V (permits). Evans identifies potential proactive strategies that a semiconductor facility can adopt to be in a sound position to continue in business. These strategies take into account two significant factors ... 

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