ECMPS 2.0 Update | December 20th, 2024

Hello!


We are writing with important updates to share as it relates to ECMPS 2.0 development. We are happy to announce the publication of the ECMPS 2.0 reporting instructions, to provide an update on the expected release timeline of ECMPS 2.0, and to provide an update on MATS-related implementation in ECMPS 2.0. Please read below for all the important details! 

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ECMPS 2.0 Reporting Instructions


  • The ECMPS 2.0 monitoring plan, quality assurance, and emissions reporting instructions are now available. Please note, although these reporting instructions may have slight modifications due to future minor changes ahead of launch, they should be considered ready for use for any kind of programming development ahead of the ECMPS 2.0 launch. These reporting instruction documents reflect the changes already made to ECMPS 2.0 schema files that were made available on September 25th, 2024. The reporting instructions can be found here.
  • Please note: sources that currently use the existing ECMPS client tool (also known as ECMPS 1.0) for official reporting should continue to use the official reporting instructions and schemas available on the EPA website here. Sources that use ECMPS 1.0 to report MATS related data should additionally refer to any official documentation and instruction provided by OAQPS. The ECMPS 2.0 reporting instructions and related schema should not yet be used for official reporting.

Release Date Update


  • Although development of the ECMPS 2.0 application is still ongoing, we are tentatively planning to have the ECMPS 2.0 application available for collecting, at the earliest, 2025Q3 data. Please note, this is subject to change. We will continue to provide updates as we get closer to the tentative application release and will inform affected users of any modifications to this timeline in a timely fashion.

MATS Implementation in ECMPS 2.0


  • At this time, there are no planned changes to the MATS reporting requirements for the initial release of ECMPS 2.0. This means that affected sources can expect to continue reporting MATS data into the new ECMPS 2.0 application when it is released as they have been reporting via ECMPS 1.0. Any major changes to reflect MATS submission requirements into ECMPS 2.0 will be announced at a later date. For specific MATS reporting guidance, please read the MATS related FAQs available here and also reference the newly published ECMPS 2.0 reporting instructions and related schemas.

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