Inactivating NODI Code(s) in ICIS and NetDMR

Business rule for the Facility Type Indicator field on the ICIS-NPDES Basic Permit screen

Properly Reporting Enforcement Actions Addressing the CAA NSR/PSD National Priority

NAICS Codes (2025-06-12)

ICIS-Air EDT Guidance and Instruction Documents

FRS–ICIS Monthly Data Exchange: Technical Overview

ICIS User Guide (8/2002)

Environmental Benefits resulting from a withdrawn referral

Investigating Significant Noncompliance (SNC) Data Handbook

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

ICIS Video Tutorials for New Users

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