California Code, Government Code - GOV § 6209.7

(b)(1) The fact that a participant is registered with the program shall create a rebuttable presumption that disclosure of information about the participant's location and activities during the period of the registration, including, but not limited to, the participant's current and past residential, work, or school addresses and other location information, would lead to the discovery of the participant's actual residential address or physical location, would endanger the safety of the participant, and is not authorized.

(2) This subdivision creates a presumption affecting the burden of producing evidence and may be rebutted by clear and convincing evidence showing, among other things, that discovery of the information about the participant's location and activities would not lead to discovery of the participant's actual residential address or physical location and would not endanger the safety of the participant.  The presumption shall not be rebutted merely by the other parent's desire to know the participant's address, and the court shall weigh participant safety.  If a court finds the presumption is rebutted, it shall provide its reasons on the record.

(3) This presumption shall also govern discovery requests under the Civil Discovery Act (Title 4 (commencing with Section 2016.010) of Part 4 of the Code of Civil Procedure).  A participant shall not be required to provide, in discovery, their residential address or other location information reasonably likely to lead to the discovery of these addresses, unless ordered to do so by a court after the other party has rebutted the presumption against disclosure of this information.