ECMPS 2.0 Rollout Delayed to 2026: What You Need to Know

ECMPS 2.0 Rollout Delayed to 2026 What You Need to Know

On April 22nd, 2025, EPA’s Clean Air and Power Division (CAPD) provided a status update on the ECMPS 2.0 re-engineering effort. The blog post can be found here.

The key takeaway from the message is the delay for ECMPS 2.0 implementation until at least Q1 2026 (from Q3 2025). This announcement didn’t take us by surprise considering the beta testing environment has been unavailable for 9 of the last 10 months!

If you haven’t already done so, we strongly encourage you to get set up with CDX and CBS test accounts and start playing around with the new ECMPS 2.0 web-based client tool. EPA created a quick start guide that will walk you through setting up your test accounts in all applications (CBS, CDX and Login.gov). It also describes the various roles and responsibilities within CDX and what to expect during the official migration expected sometime next year.  To get a copy of the startup guide click here or visit the re-engineering page at https://www.epa.gov/power-sector/ecmps-re-engineering-effort.

We are excited to hear that ECMPS 2.0 beta environment is back on-line, but most importantly to hear that it’s been backfilled with historical MP, QA, and EM data through Q3 2024. The ECMPS 2.0 tool, even when it was on-line, was relatively unusable due to out-of-date records in monitoring plans and the divergence of data between production and beta systems. Any JSON files that were produced by a DAHS likely contained outdated monitoring plan information that weren’t present in the beta system.

Some other good news is that there was no mention of any JSON schema updates. This means that any CEMLink6 DAHS systems running 6.2.620 or greater are equipped with the tools they need to start playing around in the beta environment. If you’re unsure the version you’re running or need help getting your DAHS updated, please contact our support group at support@vimtechnologies.com or call us 1-866-484-6435 and follow the prompts for support.

Unfortunately, one area where EPA is digging in their heels, is regarding Contractor Access. This is a topic we have been very vocal about to both EPA and industry for the last 3 years. This is a feature that’s available in CBS and the current stand-alone ECMPS 1.0 Client Tool and one that the vendors (DAHS, Consultants and Stack testers) rely on to access key information. Without an equivalent feature in ECMPS 2.0, industry will be forced to add a significant number of preparer agents under the sponsor (original DR or ADR) to get the support they need.  It’s imperative that industry press EPA on this subject because it will pose a significant burden to you as it’s currently architected.

VIM will continue to stay abreast of the ECMPS 2.0 developments and update this blog as relevant information becomes available. Please contact our COMPAS group at compas@vimtechnologies.com for more information concerning the ECMPS 2.0 implementation or any questions you may have.