This training focuses on the annual National Pollutant Discharge Elimination System (NPDES) Noncompliance Report (NNCR) available on ECHO, which provides summary compliance and enforcement information for more than 450,000 permittees by state, tribe, and territory by federal fiscal year. It will provide an overview of what the annual NNCR is and why it was developed, background on the NNCR workgroup, metrics included in the reports, and a demonstration to access the report on EPA's Enforcement and Compliance History Online.