Cal. Streets and Highways Code § 301.1

(a) The commission may relinquish to the City of Torrance the portion of Route 1 that is located within the city limits of the city, upon terms and conditions the commission finds to be in the best interests of the state. (b) A relinquishment under this section shall become effective immediately following the recordation by the county recorder of the relinquishment resolution containing the commission’s approval of the terms and conditions of the relinquishment. (c) On and after the effective date of the relinquishment, both of the following shall occur: (1) The portion of Route 1 relinquished under this section shall cease to be a state highway. (2) The portion of Route 1 relinquished under this section may not be considered for future adoption under Section 81. (d) The city shall ensure the continuity of traffic flow on the relinquished portion of Route 1, including, but not limited to, any traffic signal progression. (e) For the portion of Route 1 that is relinquished, the city shall maintain within its jurisdiction signs directing motorists to the continuation of Route 1.