; (3) researching training programs and work practices that can accurately assess housing-related health hazards; (4) promoting collaboration among Federal, State, local, and tribal agencies and non-governmental organizations; and (5) coordinating with all relevant Federal agencies. (b) Assessment The Secretary shall conduct a collaborative, interagency assessment of best practices for— (1) coordinating activities relating to healthy housing; and (2) creating incentives in programs of the Federal Government to advance the complementary goals of improving environmental health, energy conservation, decarbonization, and the availability of housing. (c) Study and report on sustainable building features and indoor environmental quality in housing (1) Study The Secretary, in consultation with the Secretary of Energy, the Director of the National Institute of Standards and Technology, the Director of the National Institute of Environmental Health Sciences, the Director of the Centers for Disease Control and Prevention, the Secretary of the Treasury, the Secretary of Agriculture, and any other Federal agency that the Secretary determines is appropriate, shall conduct a detailed study of how sustainable building features in housing, such as energy efficiency, affect— (A) the quality of the indoor environment; (B) the prevalence of housing-related health hazards; and (C) the health of occupants of the housing. (2) Report Not later than 3 years after the date of enactment of this Act, the Secretary shall submit to the Committee on Banking, Housing, and Urban Affairs and the Committee on Appropriations of the Senate and the Committee on Financial Services and the Committee on Appropriations of the House of Representatives a report containing the results of the study under paragraph (1). (d) Authorization of appropriations There are authorized to be appropriated such sums as may be necessary to carry out this section.