ESC MATS Q&A Collection

The ESC MATS Q&A Collection provides you with information that our Regulatory specialists have received in response to questions about MATS regulations.


Additional Information

Please note that this manual is a work in progress. The content is informal, sometimes inserted directly as received from email interactions with regulatory agencies. Some sections are not yet complete, and the existing content is subject to change as the MATS regulations change.

This manual is released for educational purposes only and should not be used as a primary reference for MATS regulations. Final interpretation on any issue or topic related to MATS (Mercury and Air Toxics Standards) lies with USEPA or with your state or local environmental agency since they have delegated authority.

This item is a MATS Readiness Resource.