AQD Online Portal (IMPACT)

ATTENTION: Dust control permit applications do not require a Shared CROMERR Services (SCS) electronic signature. To submit a dust control permit application electronically, see our Dust Permit Application Portal page. 

What is the AQD Online Portal?

The AQD Online Portal (IMPACT) is the Maricopa County Air Quality Department’s (MCAQD) new online inventory, monitoring, permitting, and compliance tracking data system. The portal currently supports Title V permits, Non-Title V permits, General permits, Asbestos NESHAP Notifications and Revisions, and Emissions Inventory. The portal will allow users to submit and track applications, reports, notifications, and documents electronically to MCAQD. 

Accessing the AQD Online Portal

Each individual that requires access to the AQD Online Portal must first create a SCS Electronic Signature. The access and use of a SCS Electronic Signature requires the creation of a user ID and password that must be kept confidential. A SCS Electronic Signature is for individual use only, and cannot be shared or accessed by anybody other than the original owner. For more information, see the SCS Terms and Conditions. 

Creating a SCS Electronic Signature is completed through the Environmental Protection Agency (EPA) SCS electronic reporting site. See the guide below for instructions on creating your SCS Electronic Signature.

If you are an outside consultant hired by a facility that holds a MCAQD permit, you will not have access to complete tasks in the AQD Online Portal (IMPACT) until a Shared CROMERR Services (SCS) Consultant Electronic Signature Registration Form is received and processed by MCAQD.

If your organization/company has never had a permit with MCAQD, or if your organization/company has recently changed ownership, please fill out and submit the Shared CROMERR Services (SCS) Electronic Signature Registration Form before attempting to access the ADQ Online Portal (IMPACT).

Permitting Resources

Asbestos NESHAP Notifications and Revisions

Training documents coming soon.

Emissions Inventory Guides and Help Sheets

General Instructions

Online Tutorials

Contact Us

For any AQD Online Portal (IMPACT) related questions, please submit an online request, call 602-506-7833 or email

Page reviewed 31 July 2020