; (11) promote the efficient production, use, and recycling of critical minerals; (12) develop alternatives to critical minerals; and (13) establish contingencies for the production of, or access to, critical minerals for which viable sources do not exist within the United States. . (d) Conforming amendment Section 2(b) of the National Materials and Minerals Policy, Research and Development Act of 1980 ( 30 U.S.C. 1601(b) ) is amended to read as follows: (b) Definitions In this Act: (1) Critical mineral The term critical mineral has the meaning given such term in section 2 of the American Critical Mineral Exploration and Innovation Act of 2020 . (2) Materials The term materials means substances, including minerals, of current or potential use that will be needed to supply the industrial, military, and essential civilian needs of the United States in the production of goods or services, including those which are primarily imported or for which there is a prospect of shortages or uncertain supply, or which present opportunities in terms of new physical properties, use, recycling, disposal or substitution, with the exclusion of food and of energy fuels used as such. . (e) Critical minerals interagency subcommittee (1) In general The Critical Minerals Subcommittee of the National Science and Technology Council (referred to in this section as Subcommittee ) shall coordinate Federal science and technology efforts to ensure secure and reliable supplies of critical minerals to the United States. (2) Purposes The purposes of the Subcommittee shall be— (A) to advise and assist the Committee on Homeland and National Security and the National Science and Technology Council on United States policies, procedures, and plans as it relates to critical minerals, including— (i) Federal research, development, and deployment efforts to optimize methods for extractions, concentration, separation and purification of conventional, secondary, and unconventional sources of critical minerals