(a) An account certificate of representation may designate one and only one CO₂ authorized alternate account representative who may act on behalf of the CO₂ authorized account representative. The agreement by which the CO₂ authorized alternate account representative is selected shall include a procedure for authorizing the CO₂ authorized alternate account representative to act in lieu of the CO₂ authorized account representative.

(b) Upon receipt by the department or its agent of a complete account certificate of representation under section 242-2.4 of this Subpart, any representation, action, inaction, or submission by the CO₂ authorized alternate account representative shall be deemed to be a representation, action, inaction, or submission by the CO₂ authorized account representative.

(c) Except in this section and sections 242-2.1(a), 242-2.3, 242-2.4 of this Subpart and section 242-6.2 of this Part, whenever the term CO₂ authorized account representative is used in this Part, the term shall be construed to include the CO₂ authorized alternate account representative.