Effective March 1, 2021, the Environmental Protection Agency (EPA) has issued a revised “National Pollutant Discharge Elimination System (NPDES) Multi-Sector General Permit for Discharges from industrial Activities” (MSGP).” This new 2021 MSGP replaces EPA’s 2015 MSGP (which expired in 2020 but was continued by administrative fiat). Compliance begins May 30, 2021 for facilities that have been subject to the 2015 MSGP. Even though EPA's direct permit authority applies only in limited parts of the country, the new MSGP provides a reminder to organizations nationwide that stormwater management efforts need to be thorough and up-to-date.