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

Selecting the Correct Enforcement Action Resolution Type Following an Administrative Hearing or Trial

NAICS Codes (2025-06-12)

ICIS-Air EDT Guidance and Instruction Documents

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

FRS–ICIS Monthly Data Exchange: Technical Overview

Environmental Benefits resulting from a withdrawn referral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

ICIS EDT Error Code Description Updates 2025

Case Conclusion Data Sheet (CCDS) definition

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

ICIS Video Tutorials for New Users

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

Issuance of the Guidance on Federally-Reportable Violations for Clean Air act Stationary Sources FRV Policy (2014)

Permit Status (2017-10-18)

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

Administrative conclusion by settlement definition, and how to receive credit