(a) Requirement to define For purposes of this part, the term “ geographic area ” shall have such meaning as the Secretary shall by notice provide. (b) Issuance of notice Not later than the expiration of the 90-day period beginning on July 29, 2016 , the Secretary shall issue a notice setting forth the definition required by subsection (a). ( Pub. L. 100–77, title IV, § 432 , as added Pub. L. 114–201, title IV, § 401(a)(2) , July 29, 2016 , 130 Stat. 807 .) Editorial Notes Prior Provisions A prior section 432 of Pub. L. 100–77 was renumbered section 433 and is classified to section 11387 of this title . Another prior section 432 of Pub. L. 100–77 , as added Pub. L. 102–550, title XIV, § 1404 , Oct. 28, 1992 , 106 Stat. 4022 , which defined terms for purposes of this part, was classified to section 11392 of this title , prior to repeal by Pub. L. 111–22, div. B, title V, § 1501 , May 20, 2009 , 123 Stat. 1701 . Another prior section 432 of Pub. L. 100–77 , July 22, 1987 , 101 Stat. 505 ; Pub. L. 100–628, title IV , §§ 461–463(a), Nov. 7, 1988 , 102 Stat. 3236 , 3237; Pub. L. 101–625, title VIII, § 834(b) –(d), Nov. 28, 1990 , 104 Stat. 4365 , 4366, which provided for supplemental assistance for facilities to assist the homeless, was classified to section 11392 of this title , prior to repeal by Pub. L. 102–550, title XIV, § 1403(a) , Oct. 28, 1992 , 106 Stat. 4013 .