Cal. Pub. Util. Code § 132053

On and after a transactions and use tax is imposed pursuant to Article 5 (commencing with Section 132300), the commission may authorize payment from the proceeds of the tax to members of the commission and alternates for serving on the commission. If so authorized, each member of the commission, including alternate members when serving in the absence of a regular member, shall be paid one hundred dollars ($100) for each day the member attends meetings of the commission and committees of the commission, but not to exceed five meetings in any one quarter, and his or her necessary and reasonable expenses in performing his or her duties as a commission member.