an active Federal investigation. (c) Agreements To request return from foreign countries The President is authorized to request from a State Party agreements or provisional measures pursuant to the Convention on the Means of Prohibiting and Preventing the Illicit Import, Export, and Transfer of Ownership of Cultural Property (823 U.N.T.S. 231 (1972)), subject to the limitations of Articles 6 and 9, under which the President may request the return from the State Party of Items Prohibited from Exportation. (d) Rules and regulations All rules and regulations necessary and appropriate to carry out the provisions of this section shall be prescribed by the Secretary and shall be made in consultation with Indian Tribes. 6. Voluntary return of tangible cultural heritage (a) Liaison The Secretary and the Secretary of State shall each designate a liaison to facilitate the voluntary return of tangible cultural heritage. (b) Trainings and workshops The individuals listed in subsection (a) shall hold trainings and workshops for representatives of Indian Tribes and collectors, dealers, and other individuals and organizations regarding the voluntary return of tangible cultural heritage. (c) Referrals (1) In general The Secretary shall refer individuals and organizations to one or more Indian Tribes with a likely cultural affiliation to tangible cultural heritage for the purpose of facilitating the voluntary return of tangible cultural heritage. (2) Referral representatives The Secretary shall compile a list of representatives from each Indian Tribe for purposes of referral under paragraph (1). (3) Consultation The Secretary shall consult with Indian Tribes before making a referral under paragraph (1). (4) Third-party experts The Secretary may utilize third parties with relevant expertise, including universities, museums, dealers, collector organizations, and others, in making determinations regarding to which Indian Tribe an individual or organization should be referred under paragraph (1). (d) Legal liability This section