(a) Regulations in effect pursuant to § 925.41, § 925.52, or § 925.55 may be modified, suspended, or terminated to facilitate handling of grapes for purposes which may be recommended by the committee and approved by the Secretary.

(b) The committee shall, with the approval of the Secretary, prescribe such rules, regulations, and safeguards as it may deem necessary to prevent grapes handled under the provisions of this section from entering the channels of trade for other than the specific purposes authorized by this section.