Guide to submitting dataflows to ICIS

Region 4 ICIS Training

ICIS NPDES EDT Technical Specification Part 1

ICIS-NPDES RNC and QNCR Schedule 2026

ICIS Modernization DME Roadmap

ICIS Modernization Project Update Newsletters

Complete List of ICIS Batch/EDT Error Codes

Claiming direct complying actions and quantified environmental benefits for expedited settlements that are penalty-only actions

ICIS Data Element Dictionary

ICIS NPDES EDT Technical Specification Part 2

ICIS Modernization: Draft Timelines

ICIS-Air Training Videos

Parameter Request Form

ICIS NPDES EDT (batch) Resources

What is the ICIS Maintenance Schedule?

ICIS Case Summary Field Must be Completed for Concluded Cases (09.02.2010)

ICIS-Air EDT Technical Specification Documents

Updating the City and County of a NPDES or Air Facility

ICIS Web Technical Specifications - Program Reports, RAD WebRIT, Reissuance, Related Activities, Reports Universes, RNC

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