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  2. Combined Air Emissions Reporting

Combined Air Emissions Reporting Project

What is the Combined Air Emissions Reporting (CAER) Project?

Air emissions reporting can be streamlined, making the overall process significantly less burdensome and time consuming for industry, federal, state, local, and tribal (SLT) air quality authorities.  Currently, air emissions information is collected by the EPA and state, local or tribal air agencies through numerous separate regulations, in a variety of formats, according to different reporting schedules, and using multiple routes of data transfer. In the proposed future state, the CAER project is expected to reduce the cost to industry and government for providing and managing important environmental data and to improve decision-making capacity through more timely availability of data.

CAERS Goals:

  1. Reduce industry burden for point source reporting;
  2. Improve timeliness and transparency of data;
  3. Create consistent information across air emissions programs;
  4. Improve data quality;
  5. Improve accessibility and usability of data; and
  6. Support more timely decision-making.

The CAER project started in 2016 after a LEAN event that brought stakeholders to the table to discuss current air emissions reporting practices and how to improve these.  After this event the CAER Product Design Team (PDT) was formed and work started on Short Term Win projects and after that, longer term requirements gathering projects to build a new reporting system to share data amongst federal and state air emissions programs. 

Original Project Description

CAER Product Design Team (PDT)

Short Term Win Projects

CAER Outreach from Previous Years

What is the Combined Air Emissions Reporting System  (CAERS)?

With input from the Product Design Team (PDT) we created the Combined Air Emissions Reporting System (CAERS) that allows industry and states to enter and send their annual emissions reports for the National Emissions Inventory (NEI) and share data with the Toxics Release Inventory (TRI). 

Thanks to the hard work of our pilot state of Georgia, through their staff at the Georgia Department of Natural Resources (GADNR), our CAER system is assisting industry in reporting criteria and toxics air emissions data.  It is currently being used by several SLT partners including: Arizona and Pima County Arizona, Colorado, Georgia, Idaho, Maine, Mississippi, Rhode Island, Tennessee, and Washington, D.C..  Developed with the Agile paradigm, our newest onboarded SLTs continue to contribute feedback to help improve our system. 

In future we will share source test data from the Compliance and Emissions Data Reporting Interface (CEDRI) and greenhouse gas pollutant emissions data from Greenhouse Gas Reporting Program (GHGRP).

Combined Air Emissions Reporting

  • Combined Air Emissions Reporting (CAER) Home
  • CAERS
  • SLT Resources
  • CAER Project
    • CAER Short Term Wins
  • PDT Projects
[current-page:contact-us-link] to ask a question, provide feedback, or report a problem.
Last updated on May 5, 2026
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