(a) Administration and enforcement of chapter.--Subject to the provisions contained in this chapter, the secretary shall administer and enforce the provisions of this chapter and shall have and shall exercise all administrative powers necessary to effectuate the purposes of this chapter, including the issuance of marketing programs, the appointment of members to commodity marketing boards as provided in section 4504 (relating to commodity marketing board) and the providing of personnel, staff, legal counsel and office facilities required for the administration and enforcement of marketing programs.

(b) Grounds for public hearing.--Whenever the secretary has reason to believe that the issuance of a marketing program or amendments to an existing marketing program will tend to effectuate this chapter, the secretary shall, either upon his own motion or upon application of any producer or any organization of producers, give due notice of an opportunity for a public hearing upon a proposed marketing program or amendments to an existing marketing program.

(c) Publication of notice of hearing.--Notice of any hearing called for this purpose shall be given by the secretary by publishing a notice of the hearing, for a period of not less than five consecutive publication days, in a daily newspaper of general circulation published in the capital of the Commonwealth and in any other newspaper or newspapers as the secretary may prescribe. No public hearing shall be held prior to 20 days after the last day of the period of publication.

(d) Mailing to producers.--The secretary shall also mail a copy of the notice of a hearing and a copy of the proposed marketing program or proposed amendments to all producers whose names and addresses appear upon lists of such persons which shall be compiled in the department.

(e) Specifics of notice.--The notice of hearing shall set forth the date and place of the hearing and the area covered by the proposed marketing program or the proposed amendments and a statement that the secretary will receive at the hearing, in addition to testimony and evidence as to the proposed marketing program, testimony and evidence as to other necessary and relevant matters, including rate of assessment, and with respect to the accuracy and sufficiency of lists on file with the secretary which show the names and addresses of producers and the quantities of agricultural commodities produced by the producers in the marketing season next preceding the hearing.

(f) Hearing requirements.--The hearing shall be public, and all testimony shall be received under oath. A full and complete record of all proceedings at the hearings shall be made and maintained on file in the office of the secretary. At hearings the secretary shall receive, in addition to other necessary and relevant matters, testimony and evidence regarding the rate of assessment and testimony and evidence with respect to the accuracy and sufficiency of the lists on file with the secretary which show the names of the producers and the quantities of agricultural commodities produced by the producers in the marketing season next preceding the hearing.

(g) Issuance of marketing program.--After notice and hearing, the secretary may issue a marketing program if the secretary finds and sets forth in the marketing program that the program will tend to effectuate the purposes of this chapter.