Case Study: MACT – Iron Foundry
–MACT Regulations, passed in 2003, require reduction in Hg emissions through mandatory elimination of Hg switches in scrap feed.
–NJDEP Enacted their own emission-based Hg reduction stds. Allowing no more than 35 mg/metric ton of scrap or 75% reduction.  Passed in 4/07, compliance by 1/10.
–Other states expected to follow. 
–Expected PAC usage ~120,000 lbs/yr per facility
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