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Welcome to the Delaware Division of Air Quality’s (DAQ) Air Emission Inventory system. The State and Local Emissions Inventory System (SLEIS) is designed to facilitate the collection and reporting of air emissions inventory information. Your feedback regarding SLEIS is encouraged. To make an inquiry or suggestion, please click the “Submit general questions and/or comments” link below. Be sure in include your name and contact information in your message.
Guidance Documents:
Submit general questions and/or comments
To register as a SLEIS user, please fill out the registration form below. Return completed forms to DAQ staff as instructed on the registration form. DAQ staff will complete the registration process to allow access into SLEIS.
Download registration forms
SLEIS 2.7.1 Released 12-23-2021
SLEIS 2.6.7 Released 03-30-2021
SLEIS 1.6.4 Released 12-07-2016
SLEIS v1.2 Released to DE DNREC 03-06-2014
SLEIS v1.0 Released to DE DNREC 03-07-2012