; (2) 2 scientists appointed by the Director of the United States Fish and Wildlife Service; (3) 2 scientists appointed by the Director of the United States Geological Survey; (4) 2 scientists appointed by the Director of the National Park Service; and (5) 2 scientists appointed by the Administrator of the National Oceanic and Atmospheric Administration. 6. Reports and public disclosure (a) Reports Not later than 2 years after the date of enactment of this Act and every 2 years thereafter, the Administrator shall submit to Congress a report on the program, including data on relevant temporal trends and spatial gradients in mercury contamination in the environment. (b) Assessment Not less frequently than once every 4 years, the report required under subsection (a) shall include an assessment of mercury deposition rates that need to be achieved in order to prevent adverse human and ecological effects. (c) Availability of data The Administrator shall make all data obtained under this Act available to the public through a dedicated website and on written request. 7. Authorization of appropriations There are authorized to be appropriated to carry out this Act— (1) $37,000,000 for fiscal year 2019; (2) $29,000,000 for fiscal year 2020; and (3) $29,000,000 for fiscal year 2021.