Cal. Vehicle Code § 35722

Prior to the execution of freeway agreements for State Highway Route 85 in Santa Clara County, with the concurrence of each city within the highway corridor, the Board of Supervisors of the County of Santa Clara may, after a public hearing, adopt a proposed ordinance imposing a maximum gross truck weight limit of 9,000 pounds on Route 85 from State Highway Route 280 in Cupertino south and east to State Highway Route 101 in San Jose, and submit the proposed ordinance to the Department of Transportation for approval. Upon approval of the proposed ordinance by the department, this weight limit shall be stipulated in the applicable freeway agreements with the local entities in the Route 85 corridor. If the proposed ordinance is approved by the department, the weight limit shall become effective upon opening of any portion of the new Route 85 freeway corridor as defined in this section, and the department shall post appropriate signs, similar to the signs on State Highway Route 580 in Oakland. Except as otherwise provided in this section, this article shall be applicable to an ordinance adopted pursuant to this section.