1. Short title This Act may be cited as the Promoting Closed-Loop Pumped Storage Hydropower Act . 2. Closed-loop pumped storage projects Part I of the Federal Power Act ( 16 U.S.C. 792 et seq.) is amended by adding at the end the following: 34. Closed-loop pumped storage projects (a) Definitions In this section: (1) Closed-loop pumped storage project The term closed-loop pumped storage project means a project— (A) in which the upper and lower reservoirs do not impound or directly withdraw water from navigable waters; or (B) that is not continuously connected to a naturally flowing water feature. (2) Federal authorization The term Federal authorization — (A) means any authorization required under Federal law with respect to an application for a license, license amendment, or exemption under this part; and (B) includes any permits, special use authorizations, certifications, opinions, or other approvals as may be required under Federal law to approve or implement the license, license amendment, or exemption under this part. (b) In general As provided in this section, the Commission may issue and amend licenses and preliminary permits, as appropriate, for closed-loop pumped storage projects. (c) Dam safety Before issuing any license for a closed-loop pumped storage project, the Commission shall assess the safety of existing dams and other structures related to the project (including possible consequences associated with failure of such structures). (d) License conditions With respect to a closed-loop pumped storage project, the authority of the Commission to impose conditions on a license under sections 4(e), 10(a), 10(g), and 10(j) shall not apply, and any condition included in or applicable to a closed-loop pumped storage project licensed under this section, including any condition or other requirement of a Federal authorization, shall be limited to those that are— (1) necessary to protect public safety