California Code, Streets and Highways Code - SHC § 22085

The board or the city forester may expend any funds which it may have on hand to plant, maintain, or remove trees. The board or city forester may expend such funds if in its judgment the expenditures will not embarrass or affect the efficient discharge of its duties as defined by this part, or any other law or ordinance, and are advisable and for the best interests of the public. Any planting, maintenance, or removal done under the circumstances specified in this section shall not require the initiation of any proceedings as elsewhere specified in this part, or any other proceedings, or any formal action by the board or by the city council.