MS4 eReporting User Guide

Welcome to the web-based training for the electronic reporting of MS4 Annual Status Reports through the GreenPort system. This training is intended to supplement the MS4 Annual eReporting User Guide. This course includes four training modules. These modules will introduce users to the eReporting application, provide guidance on the completion of electronic annual reports, and review the regulatory review process for submitted reports.  

Note: In 2023, the MS4 eReporting application was in the final phase of testing and its use was limited to permittees from select counties. For 2024 use of the eReporting application is being made available to all MS4 permittees.