Subpart MM Electronic Semiannual Reporting Required in 2025!

Environmental ConsultingEnvironmental Consulting
May 20, 2024
Share it with the world!

On May 2, 2024, the U.S. Environmental Protection Agency (EPA) initially made the electronic semiannual reporting form template available for 40 CFR 63 Subpart MM, National Emission Standards for Hazardous Air Pollutants for Chemical Recovery Combustion Sources at Kraft, Soda, Sulfite, and Stand-Alone Semichemical Pulp Mills. Under Subpart MM, pulp mills with sources subject to the rule must begin submitting the semiannual electronic reporting form in U.S. EPA’s Central Data Exchange (CDX) – Compliance and Emissions Data Reporting Interface (CEDRI) for reports due on or after May 2, 2025. For most mills, the first Subpart MM compliance report required to be submitted in CEDRI will cover the 2025 1st half semiannual reporting period.

Information required to be submitted in the electronic reporting form for each semiannual period includes:

  • Facility/Reporting Period Information (address, reporting period, etc.)
  • Emission Unit, Monitoring, and Stack Configuration Data
  • Continuous Monitoring System (CMS) Equipment and Certification Data
  • Opacity Excess Emissions and Continuous Opacity Monitoring System (COMS) Performance Data
  • Operating Limit Parameter Exceedances and Continuous Parameter Monitoring System (CPMS) Performance Data
  • Information on Changes to CMS, Emission Sources, and Control Devices
  • Certification Statements
  • Detailed Information on CMS Downtime and Excess Emission/Exceedance Events (required if downtime, excess emissions, or exceedances are greater than established thresholds or if a violation occurs as defined under the rule)
  • Detailed Information on Violations (as defined under the rule)

The reporting template can be downloaded from U.S. EPA’s CEDRI website. U.S. EPA has already published 2 revisions to the reporting form template since the initial availability date of May 2, 2024. Facilities should ensure that the most recent version of the template is used to complete the applicable reports.

Trinity has assisted numerous industries (including pulp and paper) with reporting and certification assistance related to U.S. EPA’s electronic reporting initiatives. If your company needs assistance in developing a site-specific template or completing electronic reporting, reach out to your local Trinity office for assistance.

This is an outstanding report that, while exhaustively researched and accurate, is also quite readable. The report touches on developments material and links to the lime industry perspective very well.

Environmental Strategy and Carbon Permitting Manager /North American Lime Production Company

Related Resources

Court Rebukes EPA’s Methylene Chloride Approach—And Industry Takes Notice
Court Rebukes EPA’s Methylene Chloride Approach—And Industry Takes Notice
Read More
Strategy and Planning for Digital Transformation Service Sheet
Strategy and Planning for Digital Transformation Service Sheet
Read More
The Relationship Is the Permit
The Relationship Is the Permit
Read More
The Relicensing Timeline is the Project
The Relicensing Timeline is the Project
Read More
EHS Quarterly Issue 21
Jan 09, 2026
EHS Quarterly Issue 21
Read More

Related Upcoming Events

AEF Convention
Oct 8-9, 2026
59th AEF Convention
Read More
MECC Conference
Sep 22-23, 2026
2026 MECC Conference
Read More
Latin American Congress on Process Safety
Sep 30-Oct 2, 2026
11th Latin American Congress on Process Safety
Read More
EFO Annual Meeting and Trade Show
Oct 19-21, 2026
35th EFO Annual Meeting and Trade Show
Read More