; and (iii) the amount of the limitation that is applicable for a calendar year under section 5307(a)(1) of title 5, United States Code. (2) Limitations (A) In general The term of any employee appointed under this section shall not exceed 3 years. (B) Full-time employees Not more than 10 full-time employees appointed under this subsection may be employed at the National Energy Technology Laboratory at any given time. (b) Discretionary research and development (1) In general The Secretary shall establish mechanisms under which the Director of the National Energy Technology Laboratory may use an amount of funds equal to an amount that is not less than 2 percent and not more than 4 percent of all funds available to the Laboratory for the following purposes: (A) To fund innovative research that is conducted at the Laboratory and supports the mission of the Department. (B) To fund technology development programs that support the transition of technologies developed by the Laboratory into the commercial market. (C) To fund workforce development activities to strengthen external engineering and manufacturing partnerships to ensure safe, efficient, productive, and useful fossil energy technology production. (D) To fund the revitalization, recapitalization, or minor construction of the Laboratory infrastructure. (2) Prioritization The Director shall prioritize innovative experiments and proposals proposed by scientists and researchers at the National Energy Technology Laboratory. (3) Annual report on use of authority Not later than March 1 of each year, the Secretary shall submit to the Committee on Science, Space, and Technology of the House of Representatives and the Committee on Energy and Natural Resources of the Senate a report on the use of the authority under this subsection during the preceding fiscal year. (c) Review Not later than 2 years after the date of enactment of this Act, the Secretary shall submit to the Committee on Science, Space, and Technology of the House of Representatives and the Committee on