The Urban Forestry Council annually reviews and updates this list of trees, in collaboration with public and non-profit urban forestry stakeholders, including San Francisco Public Works' Urban Forestry Division and Friends of the Urban Forest.

In an effort to identify potential public safety risks posed by diseased Pine trees, Public Works and the City’s Urban Forestry Council are asking property owners to inspect the condition of pine trees within their property or on their sidewalks that appear dead or whose branch tips in the upper crown of the tree begin to die, the first sign of a regional fungal disease.

In 2007, The Urban Forestry Ordinance of the Public Works Code was revised by the Board of Supervisors to protect certain trees on private property that are close to the public right-of-way.

Significant trees are on private property and within 10 feet of the public right-of-way and also meet one of the following size requirements:

Mission and Vision:  The Bureau of Urban Forestry enhances the City's green infrastructure by preserving and growing the trees and plants that make up our urban forest. The Bureau also repairs tree-related sidewalk damage and provides emergency tree response.