; and (ii) reimburse the State for services of detailed personnel. (6) Procurement of temporary and intermittent services The Chairperson of the Commission may procure temporary and intermittent services in accordance with section 3109(b) of title 5, United States Code, at rates for individuals that do not exceed the daily equivalent of the annual rate of basic pay prescribed for level V of the Executive Schedule under section 5316 of such title. (7) Volunteer and uncompensated services Notwithstanding section 1342 of title 31, United States Code, the Commission may accept and use such voluntary and uncompensated services as the Commission determines to be necessary. (8) Support services (A) In general The Secretary shall provide to the Commission, on a reimbursable basis, such administrative support services as the Commission may request. (B) Reimbursement Any reimbursement under this subparagraph shall be credited to the appropriation, fund, or account used for paying the amounts reimbursed. (9) No effect on authority Nothing in this subsection supersedes the authority of the National Park Service with respect to the commemoration. (f) Plans; reports (1) Strategic plan The Commission shall prepare a strategic plan for the activities of the Commission carried out under this section. (2) Final report Not later than July 1, 2020, the Commission shall complete and submit to Congress a final report that contains— (A) a summary of the activities of the Commission; (B) a final accounting of funds received and expended by the Commission