(a) Except as provided in paragraph (b) of this section, each person who is subject to this subpart shall maintain and make available for inspection by the Board or Secretary such books and records as are necessary to carry out the provisions of this subpart and the regulations issued under this part, including such records as are necessary to verify any reports required. Such records shall be retained for at least two years beyond the fiscal period of their applicability.

(b) Any producer who plants less than 25 acres of soybeans annually and does not market such soybeans shall not be required to maintain books or records pursuant to this subpart.