; (2) shall include a free tier of access based on appropriated funds and anticipated costs and demand; (3) may include cost-based charges for eligible users to purchase resources of the NAIRR beyond the resources included in a free or subsidized tier; and (4) shall ensure that the primary purpose of the NAIRR is to support research. (f) Research security The head of the Program Management Office, acting through the Director of the Operating Entity and in consultation with the NAIRR Steering Subcommittee and the Director of the Office of Science and Technology Policy, shall— (1) ensure conformance with the requirements of National Security Presidential Memorandum–33 (relating to supported research and development national policy), issued January 2021, and its implementation guidance on research security and research integrity, or any successor policy document or guidance, by establishing NAIRR operating principles that emphasize the research integrity principles of openness, reciprocity, and transparency; and (2) designate a member of the leadership team for the Operating Entity as a research security point of contact with responsibility for overseeing conformance with the National Security Presidential Memorandum–33 and its implementation guidance, or any successor policy document or guidance. . (c) Conforming amendments The table of contents in section 2(b) of the William M. (Mac) Thornberry National Defense Authorization Act for Fiscal Year 2021 ( Public Law 116–283 ; 134 Stat. 3388) is amended by inserting after the items relating to title LV the following: TITLE LVI—National Artificial Intelligence Research Resource Sec. 5601. Definitions. Sec. 5602. Establishment; governance. Sec. 5603. Resources of the NAIRR. Sec. 5604. NAIRR processes and procedures. .