§ 35. Private use of electricity from lighting and power plant
Private parties or companies doing business in the Yellowstone National Park under authority from the Government may be permitted, in the discretion of the Secretary of the Army, to use electricity furnished by the electric lighting and power plant of Fort Yellowstone and Mammoth Hot Springs at actual cost to the Government for operation, maintenance, and depreciation of the plant and 10 per centum additional, under such regulations as may be prescribed by the Secretary of the Army.