NAICS Codes (2025-06-12)

'All Things ICIS Modernization' Meeting Notes

What are some search tips for ICIS?

FRS–ICIS Monthly Data Exchange: Technical Overview

ICIS User Guide (8/2002)

Environmental Benefits resulting from a withdrawn referral

Entering the conclusion data in ICIS when a CERCLA administrative order on consent must go through public comment

Memorandum: Updates and Clarifications for FY 2013 End-of-Year Enforcement and Compliance Reporting and Certification (9-26-2013)

ICIS NPDES EPA and State Inspection Reports

Memorandum: Additional Guidance on Retaining, Preserving, and Maintaining Records in Response to Hurricanes Katrina and Rita (10-4-05)

Temporarily Closed vs. Permanently Closed Operating Status for Clean Air Act (CAA) Facilities

Flowing to a Different ICIS Environment

Judicial Enforcement Action definition

Training documents and links to the new NPDES data sharing guidance and dashboard

Permit Status (2017-10-18)

Civil judicial referral definition, and how to receive credit for a civil referral

ICIS Data Guidance 9-10-2004 (Developed by Region 5 lead workgroup)

Administrative conclusion by settlement definition, and how to receive credit

How To Change The Permit Effective Date

Qualifier Codes - DMR Values (v170307)