The National Emission Standard for Hazardous Air Pollutants known as the Boiler MACT rule was finalized in January 2013. The compliance date was Jan. 31, 2016; however, the EPA can grant a one-year extension to facilities requiring additional time to comply.

The rule requires industrial, commercial and institutional boilers across the nation to meet new emission limits and work practice standards, including an energy assessment requirement to reduce the emission of hazardous air pollutants.

What Are the Rules?

The Boiler MACT (Maximum Achievable Control Technology) rule has a long history. The U.S. Environmental Protection Agency (EPA) published the first Boiler MACT rule in 2004. Litigation forced the rule to be vacated just before the compliance deadline in 2007, and the EPA went back to the drawing board to revise the regulation.

The EPA finalized a revised version of the rule in March 2011, sooner than it wanted, under the pressure of a court-ordered deadline. As a result, in May 2011, the EPA stayed the rule and in December 2011 issued a draft of a new "reconsidered" version.

In January 2013, the EPA issued the final reconsidered rule. Despite this, several groups have filed litigation against the rule. However, it is widely believed that the rule will stand and only minor changes may occur as the result of litigation. So, affected facilities should already be operating in compliance or have an approved extension and finalizing their compliance plans.

What About Compliance?

Each compliance situation is unique. In general, facilities have conducted testing and preliminary studies to determine their compliance path. Facilities have chosen to comply in many different ways including installing air pollution control retrofits or new natural gas boilers to replace solid fuel fired boilers. However, some of these facilities have had to request a compliance extension, especially those facilities retrofitting pollution control equipment because the startup of these systems can be complex. The Boiler MACT rule is requiring the reduction of pollutants that have not been regulated in the past which presents challenges.

Demonstrated Success

Our Boiler MACT team has extensive experience evaluating and implementing solutions for Boiler MACT-affected facilities ranging from multipollutant retrofits to alternative steam generation to energy assessments with qualified energy assessors to trouble shooting existing compliance problems. Our team includes the full range of experience necessary to evaluate your facility and help you develop and implement a plan.

Through multiple compliance studies and detailed design projects, our team has become a critical source of technical knowledge for all Boiler MACT solutions. Let us help your Boiler MACT compliance needs.

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Don Wolf Principal 314-682-1532
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