Its quarterly meetings move around the US to accommodate participation. All have a right to speak.
Decisions are by consensus.
NGOs do not pay dues. New members are welcome, especially businesses and NGOs. All 50 states are enrolled in MSWG and linked by e-mail. About 25 states regularly participate at quarterly meetings and 30-40 states attend the annual meeting and workshop. With the Environmental Law Institute and University of North Carolina-Chapel Hill, MSWG states sponsor about 75 EMS pilot projects that produce data for a national database project funded by the EPA's Office of Water.