1948—Act May 28, 1948, inserted second proviso in last sentence so that States may apply for reservations of portions of power sites released for entry, location, or selection to the States for highway purposes.

1935—Act Aug. 26, 1935, § 211, amended section generally, inserting “for such purpose or purposes and under such restrictions as the commission may determine”, substituted “part” for “chapter” wherever appearing, and striking out from proviso “prior to June 10, 1920” after “made”.