; (B) ensures public access to the applicable resource; and (C) meaningfully contributes to the purposes of the Recreation Area. (4) Criteria for inclusion in the recreation area On the establishment of the Advisory Commission, the Secretary shall, establish any additional criteria for inclusion of partner sites in the Recreation Area, taking into consideration the recommendations of the Advisory Commission under section 11(b)(2). (5) Cooperative management of partner sites Under a partner site agreement entered into paragraph (1), the Secretary may acquire from, and provide to, the owner or manager of the partner site goods and services to be used in the cooperative management of the applicable partner site. (6) Prohibition The Secretary may not transfer administrative responsibilities for the Recreation Area to the owner or operator of a partner site. (c) Terms and conditions of agreements Any agreement entered into under subsection (a) or (b) may include any terms and conditions that are determined to be necessary by the Secretary to ensure that— (1) in the case of an agreement relating to a partner site, the partner site complies with the terms and conditions of the applicable agreement; (2) the Secretary has the right of access at all reasonable times, and as specified in the applicable agreement, to all public portions of the properties covered by the agreement or grant for the purposes of— (A) conducting visitors through the properties or providing public recreational access; (B) interpreting the properties for the public; and (C) research, inventory, monitoring, and resource management; (3) no changes or alterations may be made to any properties covered by an agreement entered into under subsection (a) or (b) unless the Secretary and the other party to the agreement agree to the changes or alterations