A Reclamation lease of power privilege (LOPP) is a contractual right given to a non-federal entity to use a Reclamation project site for hydroelectric power generation consistent with Reclamation project purposes. A LOPP project must not impair the efficiency of Reclamation generated power or water deliveries, impact the structural integrity of the Reclamation project, jeopardize public safety, or negatively affect any other Reclamation project purpose.

The LOPP Processes, Responsibilities, Timelines, and Charges Directive and Standard (D&S) establishes the process requirements and charges associated with the non-federal development of hydropower at Reclamation project facilities authorized through a LOPP. See Reclamation D&S FAC 04-08.