Section 1. Short title
This Act may be cited as the Sun River Hydropower Authorization Act.
(a) Authorization
The Secretary of the Interior, acting through the Commissioner of Reclamation and pursuant to the reclamation laws, may construct, operate, and maintain facilities in the Sun River project, Montana, for the purpose of hydroelectric power generation.
(b) Effect
The authorization under subsection (a) shall—
(1) be in addition to any other authorizations for the Sun River project under existing law; and
(2) not limit, restrict, or alter operations of the Sun River project in a manner that would be adverse to the satisfaction of valid existing water rights or water deliveries to the holder of any valid water service contract.