Welcome to the Iowa DNR State and Local Emissions Inventory System (SLEIS), a web-based application that allows permitted facilities to compile and submit point source emissions inventory data.

Please Note:
SLEIS supports newer versions of Chrome, Firefox, or Edge browsers.

Registration and Forms
Registration for SLEIS requires that you download and complete the provided registration forms using the links below. After you have completed the forms, please make a copy of the forms and mail the originals to the address indicated on the top of the forms. When we receive your registration forms, the information will be entered into SLEIS, and you will receive an email with a link to create your initial account password. The password must be between 8 and 30 characters long, and include at least one number, one uppercase letter, and one lowercase letter. After creating the password, you can login to SLEIS.

Please download, complete, and mail the following forms to register for SLEIS:
SLEIS Electronic Reporting Registration Form
SLEIS Electronic Subscriber Agreement Form

For questions about this process, please contact us at: sleis@dnr.iowa.gov.

SLEIS Import File Specification
The purpose of this document is to describe the SLEIS file import process and flat file specification. It includes standards and conventions to use when constructing an import file, describes the physical structure of each import file type, and provides basic instruction on how to create a SLEIS import file:
SLEIS File Import Specification

SLEIS Supporting Documentation
The following documents are provided as supporting materials that may be useful when reviewing and updating the emissions inventory report:
SLEIS Source Classification Code (SCC) Table

Your feedback regarding SLEIS is encouraged. To make an inquiry or suggestion, please send a message to sleis@dnr.iowa.gov.