Richardson Bay Regional Agency

MISSION

The Richardson Bay Regional Agency (RBRA) is a local government agency serving Belvedere, Mill Valley, Tiburon and unincorporated Southern Marin. The RBRA is dedicated to maintaining and improving the navigational waterways, open waters and shoreline of Richardson Bay.

Richardson Bay Regional Agency

Navigating the Bay

Click here for designated USCG Federal Anchorages in San Francisco Bay

Restoring Native Eelgrass Habitat

Cleaning Up Marine Debris

Protecting The Bay's Fragile Environment

INVITATION FOR PUBLIC COMMENT UNTIL OCTOBER 11, 2025 REGARDING ORDINANCE 25-02 AMENDING CODE SECTIONS 3.04.010 - 3.04.020

At it’s September 11, 2025 Board Meeting, the RBRA Board of Directors approved proposed Ordinance 25-02, and authorized a 30 day public Comment period beginning September 12, 2025. Ordinance 25-02…

May contain: animal, bird, flying, and flock

MISSION

A kayaker paddles across Richardson Bay off Tiburon on Tuesday. Researchers found that damage to the eelgrass bed has plateaued. PHOTOS BY ALAN DEP — MARIN INDEPENDENT JOURNAL

RBRA In The News

Divers removing marine debris from a water body, assisted by a small boat loaded with trash.

RBRA Activities

RBRA Board of Directors Meetings

Most Recent Agenda

MISSION

Richardson Bay Regional Agency

Navigating the Bay

Restoring Native Eelgrass Habitat

Cleaning Up Marine Debris

Protecting The Bay's Fragile Environment

Board Members

Meetings

Notices/News

Staff

Featured

INVITATION FOR PUBLIC COMMENT UNTIL OCTOBER 11, 2025 REGARDING ORDINANCE 25-02 AMENDING CODE SECTIONS 3.04.010 - 3.04.020

MISSION

RBRA In The News

RBRA Activities

RBRA Board of Directors Meetings

RBRA Board of Directors Regular Meeting

RBRA Board of Directors Regular Meeting