(a) A marketing agreement or a marketing order may be proposed by the Secretary or by any other person. If any person other than the Secretary proposes a marketing agreement or marketing order, he shall file with the Administrator a written application, together with at least four copies of the proposal, requesting the Secretary to hold a hearing upon the proposal. Upon receipt of such proposal, the Administrator shall cause such investigation to be made and such consideration thereof to be given as, in his opinion, are warranted. If the investigation and consideration lead the Administrator to conclude that the proposed marketing agreement or marketing order will not tend to effectuate the declared policy of the act, or that for other proper reasons a hearing should not be held on the proposal, he shall deny the application, and promptly notify the applicant of such denial, which notice shall be accompanied by a brief statement of the grounds for the denial.

(b) If the investigation and consideration lead the Administrator to conclude that the proposed marketing agreement or marketing order will tend to effectuate the declared policy of the act, or if the Secretary desires to propose a marketing agreement or marketing order, he shall sign and cause to be served a notice of hearing, as provided in this subpart.