This rule makes final the conforming amendments to the regulations of the Public Housing Operating Fund Program to reflect recent statutory amendments allowing for: (1) The maximum term of an energy performance contract (EPC) between a public housing authority (PHA) and an entity other than HUD to be up to 20 years, and (2) the extension of an existing EPC, without reprocurement, to a period of no more than 20 years, to allow additional energy conservation improvements. The increase in the maximum EPC term, which was limited to 12 years, is provided by statutory amendments and will enable longer payback periods for energy conservation measures. This final rule adopts an October 16, 2008 interim rule without change.