In general
The Secretary of Housing and Urban Development and the Secretary of Agriculture shall, not later than September 30, 2006 , jointly establish, by rule, energy efficiency standards for—
(A) new construction of public and assisted housing and single family and multifamily residential housing (other than manufactured homes) subject to mortgages insured under the National Housing Act [ 12 U.S.C. 1701 et seq.];
(B) new construction of single family housing (other than manufactured homes) subject to mortgages insured, guaranteed, or made by the Secretary of Agriculture under title V of the Housing Act of 1949 [ 42 U.S.C. 1471 et seq.]; and
(C) rehabilitation and new construction of public and assisted housing funded by HOPE VI revitalization grants under section 1437v of this title .