increase the wage rates of that employee by an amount (determined at the sole and exclusive discretion of the applicable Secretary after consultation with the other Secretary) that is generally consistent with the percentage increases given to wildland firefighters in the General Schedule under section 5332a. (2) An increased wage rate under paragraph (1) shall be basic pay for the same purposes as the wage rate otherwise established under this section. (3) An increase under this subsection may not cause the wage rate of an employee to increase to a rate that would produce an annualized rate in excess of the annual rate for level IV of the Executive Schedule. . (d) Effective date The amendments made by this section shall take effect on the first day of the first applicable pay period beginning on or after October 1, 2023. (e) Applicability Notwithstanding section 40803(d)(4)(B) of the Infrastructure Investment and Jobs Act ( 16 U.S.C. 6592(d)(4)(B) ), the salary increase in such section 40803(d)(4)(B) shall not apply to the positions described in such section 40803(d)(4)(B) for service performed on or after the effective date described in subsection (d) of this section. 3. Wildland fire incident response premium pay (a) In general Subchapter V of chapter 55 of title 5, United Sates Code, is amended by inserting after section 5545b the following: 5545c. Incident response premium pay for employees engaged in wildland firefighting (a) Definitions In this section— (1) the term appropriate committees of Congress means— (A) the Committee on Homeland Security and Governmental Affairs of the Senate