The Secretary shall manage the Preserve in accordance with sections
698v to
698v–10 of this title during the interim period from the date of acquisition of the Baca ranch under section
698v–2
(a) of this title to the date of assumption of management of the Preserve by the Trust under section
698v–6 of this title. The Secretary may enter into any agreement, lease, contract, or other arrangement on the same basis as the Trust under section
698v–6
(c)(1) of this title: Provided, That any agreement, lease, contract, or other arrangement entered into by the Secretary shall not exceed two years in duration unless expressly extended by the Trust upon its assumption of management of the Preserve.