The Secretary is authorized to take such action as he determines to be necessary to facilitate the transition from the certificate program provided for under
section 1379d of this title to a program under which no certificates are required. Notwithstanding any other provision of law, such authority shall include, but shall not be limited to the authority to exempt all or a portion of wheat or food products made therefrom in the channels of trade on
July 1, 1973, from the marketing restrictions in subsection (b) of
section 1379d of this title, or to sell certificates to persons owning such wheat or food products made therefrom at such price and under such terms and conditions as the Secretary may determine. Any such certificate shall be issued by the Commodity Credit Corporation. Nothing herein shall authorize the Secretary to require certificates on wheat processed after
June 30, 1973.