The decision of the commission shall be in writing and shall contain findings of fact and a determination of the issues presented. The decision shall also inform the applicant that the time for judicial review is governed by California Code of Civil Procedure Section 1094.6. Copies of the decision shall be forthwith delivered to the parties personally or sent to them by registered mail. The decision shall be final when signed by the commission and served as herein provided. (Prior code § 34.14.1410)