SFMTA constantly moves their departments, programs, and organization processes, so go to their site for the latest version of what they have to offer: sfmta.com
Private citizens put together a detailed database to track SFMTA decisions: MTA Board of Directors & Parking Authority Commission Resolution Database About Public Right-of-Way Infrastructure and Regulation Locations: s://sfmta.xtreet.org/resolutions
According to SFMTA these are the rules for interacting with the Board and as you will see, they do not fit the way other city agencies interact with the public. Unlike other city departments and agencies, YOU MAY NOT CONTACT INDIVIDUAL SFMTA BOARD DIRECTORS, but must send all communications through firstname.lastname@example.org.
If this bothers you, you may want to complain to the ethics commission or support the Charter Amendment ballot initiative that would restructure the SFMTA.