12 U.S.C. § 1701z–10a
The Secretary shall, not less than biennially, survey national, regional, and local economic and housing market conditions in a manner that provides data comparable to the data collected in such survey conducted in 1981.
(Pub. L. 91–609, title V, § 512, as added Pub. L. 98–181, title I [title IV, § 466(b)], , 97 Stat. 1236.)
Section was enacted as part of the Housing and Urban Development Act of 1970, and not as part of the National Housing Act which comprises this chapter.