Latest Update:
Proposed Boiler and Process Heaters MACT Rule Released April 29th, 2010
On April 29, 2010, the Environmental Protection Agency (EPA) proposed a set of regulatory proposals under the Clean Air Act that address emissions from boilers, process heaters, and certain solid waste incinerators.
Following is a quick breakdown of the three proposed rules:
Major Source Facilities:
Facilities that emit, or have the potential to emit 10 or more tons per year (tpy) of any single air toxic or 25 tpy, or more, of any combination of air toxics.
This rule will apply to two types of units:
Boilers, which burn natural gas, fuel oil, coal, biomass (e.g. wood), refinery gas, or other gas to produce steam.
Process heaters, which heat raw or intermediate materials during an industrial process.
Area Souce Facilities:
Facilities that emit, or have the potential to emit less than 10 tpy of any single air toxic or less than 25 tpy of any combination of air toxics.
This rule will apply to two areas of boilers:
Industrial boilers used in manufacturing, processing, mining, refining, or any other industry.
Commercial and Institutional boilers used in commercial establishments, medical centers, educational facilities and municipal buildings. The majority of area source boilers covered by this proposed rule are located at commercial and institutional facilities.
Commercial and Industrial Solid Waste Incineration Units (CISWI):
This rule will cover five CISWI subcategories: Incinerators, Energy Recovery Units, Waste Burning Kilns, Burn-Off Ovens and Small/Remote Incinerators.