(a) Each handler shall furnish to the committee, at such times and for such periods as the committee may designate, certified reports covering, to the extent necessary for the committee to perform its functions, each shipment of grapes as follows:

(b) Upon request of the committee, made with the approval of the Secretary, each handler shall furnish to the committee, in such manner and at such times as it may prescribe, such other information as may be necessary to enable the committee to perform its duties under this part.

(c) Each handler shall maintain for at least two succeeding fiscal periods after the end of the fiscal period in which the transactions occurred, such records of the grapes received and disposed of by such handler as may be necessary to verify the reports such handler submits to the committee pursuant to this section.

(d) All reports and records submitted by handlers pursuant to the provisions of this section shall be received by, and at all times be in custody of one or more designated employees of the committee. No such employee shall disclose to any person, other than the Secretary upon request therefor, data or information obtained or extracted from such reports and records which might affect the trade position, financial condition, or business operation of the particular handler from whom received: Provided, That such data and information may be combined, and made available to any person, in the form of general reports in which the identities of the individual handlers furnishing the information are not disclosed and may be revealed to any extent necessary to effect compliance with the provisions of this part and the regulations issued thereunder.