Enactment of section by Pub. L. 115–254 applicable to each major disaster and emergency declared by the President on or after Aug. 1, 2017, and authorities provided under div. D of Pub. L. 115–254 applicable to each major disaster and emergency declared by the President on or after Jan. 1, 2016, except as otherwise provided, see section 1202 of Pub. L. 115–254, set out as an Effective Date of 2018 Amendment note under section 5121 of this title.