date, and which are attributable to the severe storms and flooding giving rise to the Presidential declaration described in section 2(1). In the case of any other losses, section 165(h)(2)(A) of such Code shall be applied without regard to the losses referred to in the preceding sentence. 403. Required exercise of authority under section 7508A for tax relief relating to Louisiana storms and flooding (a) In general In the case of any taxpayer determined by the Secretary of the Treasury to be affected by the Presidentially declared disaster relating to the severe storms and flooding giving rise to the Presidential declaration described in section 2(1)— (1) any relief provided by the Secretary of the Treasury under section 7508A of the Internal Revenue Code of 1986 shall be for a period ending not earlier than August 31, 2017, and shall be treated as applying to the filing of returns relating to, and the payment of, employment and excise taxes