; (B) assist scientists and engineers in making the fullest possible use of the Center’s data holdings; (C) seek and incorporate other information on energy critical elements to enhance the Center’s utility for program participants and other users; and (D) provide advice to the Secretary concerning the program. (e) Authorization of appropriations (1) In general There are authorized to be appropriated to the Secretary to carry out this Act the following sums: (A) For fiscal year 2020, $30,000,000. (B) For fiscal year 2021, $31,500,000. (C) For fiscal year 2022, $33,075,000. (D) For fiscal year 2023, $34,728,750. (E) For fiscal year 2024, $36,465,188. (2) Availability Such sums shall remain available until expended. 102. Supply of energy critical elements The President, acting through the Critical Material Supply Chain Subcommittee of the Committee on Environment, Natural Resources, and Sustainability of the National Science and Technology Council, shall— (1) coordinate the actions of applicable Federal agencies to promote an adequate and stable supply of energy critical elements necessary to maintain national security, economic well-being, and industrial production with appropriate attention to a long-term balance between resource production, energy use, a healthy environment, natural resources conservation, and social needs; (2) identify energy critical elements and establish scenario modeling systems for supply problems of energy critical elements; (3) establish a mechanism for the coordination and evaluation of Federal programs with energy critical element needs, including Federal programs involving research and development, in a manner that complements related efforts carried out by the private sector and other domestic and international agencies and organizations; (4) promote and encourage private enterprise in the development of an economically sound and stable domestic energy critical elements supply chain