Cal. Streets and Highways Code § 444

(a) Route 144 is from Alameda Padre Serra in Santa Barbara to Route 192 via Sycamore Canyon Road. (b) Upon a determination by the commission that it is in the best interests of the state to do so, the commission may, upon terms and conditions approved by it, relinquish Route 144 to the City of Santa Barbara, if the city has agreed to accept it. The relinquishment shall be effective on the day immediately following the commission’s approval of the terms and conditions. (c) This section shall remain in effect only until the date the relinquishment authorized under subdivision (b) becomes effective, and as of that date is repealed, unless a later enacted statute, which is enacted on or before that date, deletes or extends that date. (d) The relinquished former portion of Route 144 in the City of Santa Barbara between Route 101 and Alameda Padre Serra is not a state highway and is not eligible for adoption under Section 81. For that relinquished former portion of Route 144, the City of Santa Barbara shall maintain signs directing motorists to the continuation of Route 144.