; (2) public institutions, including public institutions of higher education; (3) private corporations; and (4) nonprofit organizations. (d) Authorization of appropriations (1) In general There are authorized to be appropriated to the Director $5,000,000 for fiscal year 2023, $5,000,000 for fiscal year 2024, and $5,000,000 for fiscal year 2025 to carry out this section. (2) Supplement not supplant Funds made available to carry out this section shall supplement and not supplant funds made available to the Director for other purposes. 4. Authority for Director of the National Institute of Standards and Technology to consult with experts on matters relating to per- and polyfluoroalkyl substances In carrying out this Act, the Director of the National Institute of Standards and Technology may consult with Federal agencies, nongovernmental organizations, State and local governments, and science and research institutions determined by the Director to have scientific or material interest in reducing unnecessary occupational exposure to per- and polyfluoroalkyl substances by firefighters.