Welcome to the Iowa Air Emissions Assistance Program's Minor Source Emissions Inventory Resource Page

The 2020 Minor Source Emission Inventory (MSEI) is required for facilities in the western third of the state. The inventory is due May 15, 2021.

The resources found on this webpage were developed to assist facilities in understanding and completing the requirements for the Emission Inventory. Please note: some facilities may require assistance beyond the scope of this website. Although these resources are available to all facilities please be aware that the Iowa Air Emissions Assistance Program was created to provide technical assistance to small businesses with 100 or fewer employees.

What Client’s Say

top portion block--block--117.tpl.php


Questions? Concerns? Need Training?

We're here to help!

The IAEAP provides one-on-one training sessions for small businesses to meet face-to-face with an IAEAP specialist. During the training, we can provide specific and accurate assistance to aid your facility in the completion of your emissions inventory, including:

  • Available tools and resources
  • Commonly asked questions
  • Calculation strategies
  • Form Completion

Training can take place at your facility or our office in Cedar Falls. To request an appointment, please complete the adjacent form.

Please note training sessions are limited to small businesses with 100 or fewer employees.

MSEI Assistance Request or Call 1-800-422-3109

contact us for MSEI assistance

Submit Electronically:


Check out the Iowa DNR's State and Local Emissions Inventory System (SLEIS), a web-based application that allows facilities to submit emissions inventory data.

link to sign up for newsletter

Evaluate our services