Upcoming Training Calendar for all NeT, NetDMR and ICIS trainings

Steps to Resolve the "ID SI_LOCALE" error message

ICIS Training Materials

User Support

ICIS System Contacts

All Things ICIS Modernization: General Project Information

Excel Spreadsheet Tools for mapping data to ICIS XML format

NAICS Code Changes

Resolving Issues Related to Login.gov Authentication

State, LCON, and Tribal Personnel: ICIS New User Getting Started Guide

Parameters and Pollutants (2026-03-27)

General Login.gov Information

ICIS-NPDES RNC and QNCR Schedule 2026

ICIS User Manual - Unofficial (04/2021)

ICIS NPDES EDT Technical Specification Part 1

Instructions for Logging into ServiceNow Support Portals to Track Tickets and Articles

What is the ICIS Maintenance Schedule?

Guide to submitting dataflows to ICIS

ICIS-Air ICR (2020)

ICIS Modernization: Draft Timelines