; 131 Stat. 1173) are both amended by striking September 21, 2017 and inserting October 17, 2017 . (b) Employee retention credit Subsections (a)(3), (b)(3), and (c)(3) of section 503 of the Disaster Tax Relief and Airport and Airway Extension Act of 2017 ( Public Law 115–63 ; 131 Stat. 1181) are each amended by striking sections 51(i)(1) and 52 and inserting sections 51(i)(1), 52, and 280C(a) . (c) Effective date The amendments made by this section shall take effect as if included in the provisions of title V of the Disaster Tax Relief and Airport and Airway Extension Act of 2017 to which such amendments relate. III Budgetary effects 5201. Emergency designation This division is designated as an emergency requirement pursuant to section 4(g) of the Statutory Pay-As-You-Go Act of 2010 ( 2 U.S.C. 933(g) ). 5202. Designation in Senate In the Senate, this division is designated as an emergency requirement pursuant to section 403(a) of S. Con. Res. 13 (111th Congress), the concurrent resolution on the budget for fiscal year 2010.