Expansion of Big Case Definition: Air Toxic Cases > 200,000 Pounds of Air Toxic Emissions (03/22/2010)

NODI Codes & Descriptions (2024-04-04)

Administrative penalty order complaint definition, and how to enter administrative data

Information Request definition

NAICS Codes (2025-06-12)

Administrative penalty order conclusion definition, and how to receive credit

Entering National Enforcement Initiative (NEI) Case Conclusion Information (04.10.2012)

How to handle Permit Status being set to Administratively Continued or Expired

ICIS Web Technical Specifications - ADR, Asynchronous Tech Spec, Compliance Assistance, DMR Non-receipt, DMR, Effluent Trade Partners, Effluent Violation Processing

Tribal Land Codes: 2025 Updates (REF_TRIBAL_LAND)

EPA Region 4 ICIS-NPDES Registration Instructions and Forms - Version 24.1 (Updated November 14, 2024)

EPA NPDES eRule Implementation: Roadmap for Updating the ICIS Data Submission Service for Phase 2 Data

CWA Municipal Settlements and Supplemental Environmental Projects (SEPS) Memorandum 11-04-05

SIC Codes (2018-01-25)

Linking an enforcement action to a facility's OIL database programmatic ID

DMR Non-Receipt Processing Training Recording (9/15/22)

Guidance for Reporting Imported HFC Actions in ICIS

Federal Facilities - Final Guidance on Identifying Federal Facility Activities and Ownership in ICIS (06.30.2011)

How to Download EDT Batch Audit Reports from BI Reports

ICIS Related Links (Update 2023-08-22)