; and (2) made available under subsection (b)(2) within 12 months of enactment of the Act appropriating such funds. (d) Limitation Amounts provided pursuant to this section may not be used for operating costs or rental assistance. (e) Use of funds Not more than 0.5 percent of any amount appropriated pursuant to this section shall be used by the Secretary for costs associated with staff, training, technical assistance, technology, monitoring, travel, enforcement, research, and evaluation. (f) Monitoring With respect to any public housing agency that is designated as troubled at the time that amounts appropriated pursuant to this section are obligated for such public housing agency, the Secretary shall provide additional monitoring and oversight of such public housing authorities to ensure that any amounts provided are used in accordance with this section and any applicable laws. (g) Supplement not supplant The Secretary shall ensure that amounts provided pursuant to this section shall serve to supplement and not supplant other amounts generated by a recipient of such amounts or amounts provided by other Federal, State, or local sources. (h) Water and energy efficiency In distributing any amounts pursuant to subsection (b), the Secretary shall give priority to public housing agencies located in States and localities that have a plan to increase water and energy efficiency when developing or rehabilitating public housing using any amounts distributed. 4. Rural Multifamily Preservation and Revitalization Demonstration Program (a) In general There is authorized to be appropriated for carrying out the Multifamily Preservation and Revitalization Demonstration program of the Rural Housing Service (as authorized under sections 514, 515, and 516 of the Housing Act of 1949 ( 42 U.S.C. 1484 ; 1485