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.
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
SLEIS 2.6.7 Released
SLEIS 1.6.4 Released
SLEIS v1.2 Released to DE DNREC
SLEIS v1.0 Released to DE DNREC