The Hydropower Regulatory Efficiency Act of 2013 (Public Law 113-23) increases from 5,000 to 10,000 kilowatts the size of small hydroelectric power projects which FERC may exempt from its license requirements. It further waives license requirements for any conduit hydroelectric facility that: (1) uses for electric power generation only the hydroelectric potential of a non-federally owned conduit, (2) has a maximum installed capacity of 5 megawatts, and (3) is not currently licensed or exempted from license requirements.