; (3) releases the United States and any agents, employees, and contractors of the United States from liability for ordinary negligence that arises out of or in connection with the authorized activities of the permittee; and (4) requires the client to indemnify and hold harmless the United States and any agents, employees, and contractors of the United States for any injury or damages the United States or any agents, employees, and contractors of the United States may sustain as a result of any claim other than gross negligence that is caused by or arises out of or in connection with the involvement of the client in the authorized activities of the permittee. (b) Requirements A form under subsection (a)— (1) shall not preclude claims of gross negligence against the permittee; (2) shall not eliminate the obligation of the permittee to indemnify the United States unless the permittee is a recreation service provider that meets the requirements of paragraphs (1) and (2) of subsection (c); (3) shall not affect the ability of the United States to recover as an additional insured under any insurance policy obtained by the permittee in connection with the authorized activities of the permittee; (4) shall identify the State under the laws of which— (A) the form, including any waiver or release, shall be enforced; and (B) any claim or cause of action, whether in tort or in contract, relating to or arising out of the form shall be governed; and (5) may be subject to review and approval by the Secretary concerned to ensure that the requirements of this subsection and subsection (a) are met. (c) Indemnification by government entities The Secretary concerned may not require a recreation service provider to indemnify the United States as a condition for issuing a special recreation permit for a public land unit under this Act if— (1) the recreation service provider is prohibited by State or local law from providing indemnification to the United States