1. (a) A non-party with an interest in the outcome of the case may, by motion, request permission from the presiding officer to file an amicus brief. The presiding officer may also request the filing of an amicus brief from a non-party to address an issue of significance in the case. An amicus brief may only be filed with authorization from the presiding officer.

2. (b) A motion to file an amicus brief shall show good cause for filing the amicus brief, which shall be demonstrated by considering all of the following factors:

   1. (1) Due process of law.
   2. (2) Whether matters in the amicus brief will be helpful to the presiding officer.
   3. (3) The interests of the public and public policy.
   4. (4) The costs to the parties to answer the amicus brief.
3. (c) If the motion is granted, the presiding officer shall set deadlines for submission of the amicus brief and any party's answers to the brief.

Note: Authority cited: Section 11400.20, Government Code; and Sections 14536 and 40502, Public Resources Code. Reference: Sections 11400.20 and 11440.50, Government Code.

History

1. New section filed 5-12-2026; operative 7-1-2026 (Register 2026, No. 20).