On July 26, 2019, the U.S. Federal Register published the Environmental Protection Agency’s (EPA) proposed amendments to the provisions in the National Emission Standards for Hazardous Air Pollutants (NESHAP). The primary purpose of the proposed amendments is to withdraw the “Once In, Always In” (OIAI) policy regarding the classification of facilities as major sources of hazardous air pollutants (HAPs) subject to Maximum Achievable Control Technology (MACT) standards. A major source is defined as any facility which emits at least 10 tons per year of any HAP or at least 25 tons per year of any combination of HAPs. A facility that is not classified as a major source is considered an area source. The OIAI policy, issued in 1995, required major source facilities that are subject to a MACT standard to permanently comply with that standard even if a facility reduces its HAP emissions below major source thresholds. The withdrawal of the OIAI policy was also previously discussed in EPA’s guidance memorandum issued on January 25, 2018. Continue reading “EPA Proposes NESHAP Amendments to Withdraw “Once In, Always In” Policy for MACT Standards”
On September 6, 2019, the EPA published a proposed amendment to what is commonly referred to as the Plywood or Kiln MACT. This proposed amendment does not address lumber kiln emission standards. EPA has stated that the lumber kiln emission and work practice standards will be addressed in a later proposed amendment.
This proposed amendment to 40 CFR 63, Subpart DDDD: National Emission Standards for Hazardous Air Pollutants (NESHAP) for Plywood and Composite Wood Products (PCWP) is based on the completion of the residual risk and technology review. The review has found that no revisions are necessary to the current controls in the original rule. The rule does propose removal of the startup, shutdown, and malfunctions plans as EPA has deemed this to be sufficiently addressed in the work practice standards of the regulation, as well as by the Clean Air Act (CAA).
The proposed rule is open to comments until October 21, 2019. All submissions must include Docket ID No. EPA-HQ-OAR-2016-0243-0034. The EPA encourages that comments be submitted through the Federal eRulemaking Portal located at https://www.regulations.gov/.
If you need help identifying how this proposed rule change will affect your facility or need assistance with providing comments to the EPA, please contact us at (770) 263-6330 or email@example.com.