H.R. 2046 requires Congress to approve any decision by federal officials to sell, dispose of, or transfer federally owned property that has historical significance. The bill defines "covered buildings" as any federal land, building, structure, monument, or site that is or has ever been listed on the National Register of Historic Places. Before taking any such action, federal officials must notify Congress and obtain passage of a joint resolution specifically approving the transaction. This requirement applies to the President, heads of federal agencies, and other federal officials. The bill contains no specific funding or implementation timeline but would effectively give Congress veto power over decisions to divest historically significant federal properties, preventing executive branch agencies from unilaterally disposing of buildings and sites with recognized historical value.