Cal. Public Resources Code § 45017

(a) (1) Except as provided in paragraphs (2) and (3), all orders and determinations issued pursuant to this part or Part 4 (commencing with Section 43000) shall take effect immediately upon service. (2) (A) If an order or determination is issued pursuant to this part or Part 4 (commencing with Section 43000) to the owner or operator of a solid waste facility operating under a solid waste facilities permit issued in accordance with this part, the owner or operator may petition the executive director of the board, pursuant to this subparagraph, to stay the effect of the order or determination, or portion thereof, pending the completion of administrative appeals before the hearing panel or hearing officer or the board. (B) A petition submitted pursuant to subparagraph (A) shall be in writing and shall state the extraordinary circumstances that justify the stay. The petition shall also state the grounds, if any, on which a finding may be made that the immediate effect of the order or determination will preclude or interfere with the provision of an essential public service so that the public health and safety or the environment will be adversely affected. (C) If the executive director finds the immediate effect of the order or determination will preclude or interfere with the provision of an essential public service so that the public health and safety or the environment will be adversely affected, the executive director shall consider and act on the petition within three days from the receipt of the petition. The board or the executive director may order the stay to be in effect from the effective date of the order or determination or other appropriate date. (D) If the executive director does not find that the immediate effect of the order or determination will preclude or interfere with the provision of an essential public service, the board shall act upon the petition within 14 days or at its next scheduled public meeting, whichever date is sooner. (3) (A) If an order or determination is issued pursuant to this part or Part 4 (commencing with Section 43000) to a person that is not the owner or operator of a permitted solid waste facility, the person subject to the order or determination may petition the board pursuant to this subparagraph to stay the effect of the order or determination, or portion thereof, pending the completion of administrative appeals before the hearing panel or hearing officer or the board. (B) The board shall act on a petition filed pursuant to subparagraph (A) within 14 days or at its next scheduled public meeting whichever date is sooner. The board may order the stay to be in effect from the effective date of the order or determination or other appropriate date. (b) For purposes of this section, service may be effected by any of the following: (1) Personal delivery. (2) First-class United States mail, if it is made by certified mail and evidence of delivery is provided. (3) Express delivery by a national express mail service that provides evidence of delivery.