; and (ii) the fair market rental for the jurisdiction in which the property is located, as established by the Secretary under section 8(c) of the United States Housing Act of 1937 ( 42 U.S.C. 1437a(c) ). (E) Regulations The Secretary may promulgate any regulation that is necessary and proper to carry out this paragraph. (3) Priority In awarding assistance for farm labor housing and multi-family housing under paragraphs (1) and (2), the Secretary shall give priority to an applicant seeking assistance for a housing project that— (A) as determined by the Secretary, is energy efficient and generates energy, such as through geo-exchange systems, ground-source heat pumps, wind turbines, and solar energy systems