ECMPS 2.0 – What do I need to know?

Author AdminPosted on

The EPA’s Emissions Collection and Monitoring Plan System (“ECMPS”) is the tool used for reporting monitoring plans, Quality Assurance data, and emissions data under the Acid Rain program, the Cross-State Air Pollution Rule (“CSAPR”),  and the Mercury and Air Toxics Standards (“MATS”) rule. The tool has been in use since 2009, with significant updates made in 2012 to include MATS reporting and in 2015 to include CSAPR.  

First announced in 2021, ECMPS 2.0 is a web-based replacement for the current desktop version (ECMPS 1.0), introducing a modernized interface and workflow. Some of the key upgrades include: 

  • Browser-Based Application – reducing technical support needs and increasing accessibility  
  • File Format Transition – a switch from XML to JSON for data submission 
  • Log-in & Security – integration with EPA’s CDX and login.gov interface, requiring authentication methods 
  • Multi-User Access – improved collaboration by allowing multiple users to access the interface 
  • No change to MATS Data – continued format and reporting of MATS data in ECMPS 2.0 exactly as it is currently reported in ECMPS 1.0 

        Beta testing of the new platform has been ongoing since 2021 to receive user feedback and address bug issues.  

        Various key action items from users are needed before the transition is officially complete for Quarter 1 2026 reports that are due by April 30: 

        • Obtain & test CDX/Login.gov credentials 
        • Coordinate with your Data Acquisition & Handling System (“DAHS”) vendor for software updates to JSON formatting 
        • Confirm Designated Representative and Alternate Designated Representative responsibilities in CDX 

        Be sure to check out the ECMPS Support webpage for great video trainings for using the new platform at: https://ecmps.camdsupport.com/learn_tutorial_descriptions.shtml