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)], Nov. 30, 1983 , 97 Stat. 1236 .) Editorial Notes Codification 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. CFR Title Parts 24 291