(d)
Functions of Bureau of Mines
There are transferred to, and vested in, the Secretary those functions of the Secretary of the Interior, the Department of the Interior, and officers and components of that Department under the Act of May 15, 1910, and other authorities, exercised by the Bureau of Mines, but limited to—
(1)
fuel supply and demand analysis and data gathering;
(2)
research and development relating to increased efficiency of production technology of solid fuel minerals, other than research relating to mine health and safety and research relating to the environmental and leasing consequences of solid fuel mining (which shall remain in the Department of the Interior); and
(3)
coal preparation and analysis.