Any authorized inspector, or other authorized person, who is discharging his duties in the checking of compliance with the provisions of any marketing order which is made effective pursuant to this chapter may enter and inspect any premises, enclosure, building, or conveyance where he has reason to believe any commodity which is subject to a marketing order is produced, stored, being prepared for market, or marketed, and inspect, or cause to be inspected, such representative samples of the commodity as may be necessary to determine whether or not any lot of such commodity is in compliance with applicable regulations, or rules and regulations, of any marketing order which is made effective pursuant to any provision of this chapter.