; 50 U.S.C. 1701 note) is hereby repealed. 302. Defense Base Act insurance waivers (a) Application for waivers Not later than 30 days after the date of the enactment of this Act, the Secretary shall apply to the Department of Labor for a waiver from insurance requirements under the Defense Base Act ( 42 U.S.C. 1651 et seq.) for all countries where the requirement was waived prior to January 2017, and for which there is not currently a waiver. (b) Certification requirement Not later than 45 days after the date of the enactment of this Act, the Secretary shall certify to the appropriate congressional committees that the requirement in subsection (a) has been met. 303. Allowances (a) Statement of policy It is the policy of the United States that— (1) pay differentials for staffing overseas posts should reflect the various factors affecting the desirability of such posts, including the preference of employees bidding and the dangers or overall hardships of serving in a particular location, as perceived by the actual employees eligible to bid for positions in such locations; and (2) the Secretary should periodically analyze fluctuations in such bidding patterns to ensure that pay differentials reflect— (A) the changing conditions in each post; and (B) the impact of staffing incentives through pay differentials offered during the previous year. (b) Staffing incentive (1) In general Chapter 59 of title 5, United States Code, is amended— (A) by striking sections 5925 and 5928; and (B) by inserting after section 5924 the following new section: 5925. Staffing incentive (a) Authorization A staffing incentive, not to exceed 70 percent of the basic pay of the employee, may be granted to an employee serving at an overseas post based on the recruitment and retention needs for filling positions at that post if such incentive— (1) compensates the employee for conditions of environment that are substantially and unfavorably different than conditions of environment in the continental United States