CA Gov't Code Section 38442

Except as provided in Section 38441, this article shall not be construed to authorize:

(a)

A discontinuance and abandonment, or change in the use, of such lands which will cause the reversion of the lands to private ownership or a forfeiture of the city’s ownership in fee.

(b)

The discontinuance of the use of park lands acquired by funds obtained from a local assessment based on benefits.