California Code, Penal Code - PEN § 5004.5

The director shall require each state prison under the department's jurisdiction to develop a Mutual Aid Escape Pursuit Plan and Agreement with local law enforcement agencies. The plan, together with any supporting information, shall be submitted for annual review to the city council of the city containing or nearest to the institution and to the county board of supervisors of the county containing the prison.

Nothing in this section shall require the department to disclose any information which may threaten the security of an institution or the safety of the surrounding community.