California Code, Penal Code - PEN § 4053

(1) That it will be beneficial to the public interest to create a joint district for the establishment or operation, or both, of a joint county jail to which persons from any of the counties proposed to be included in the proposed district may be committed.

(2) The names of the counties proposed to be included in the proposed district which will be benefited by the formation thereof.

(3) That it is proposed to create a joint district for the establishment or operation, or both, of a joint county jail under the provisions of this chapter for the counties so named.