NetDMR

Rule Changes

As of May 2026: Primary DMR electronic submission tool used by many states (Phase 1 backbone).

For years, Clean Water Act reporting has lived in a split-screen world: core discharge numbers went digital, but paperwork stayed stuck in PDFs, emails, and filing cabinets. Phase 2 of EPA's NPDES Electronic Reporting Rule aims to close that gap, with a December 21, 2025 compliance date.

Updated May 16