42 U.S. Code § 4370g - Availability of funds for uniforms and certain services
For fiscal year 2009 and thereafter, the Science and Technology and Environmental Programs and Management Accounts are available for uniforms, or allowances therefore,  as authorized by sections 5901 and 5902 of title 5and for services as authorized by section 3109 of title 5, but at rates for individuals not to exceed the daily equivalent of the rate paid for level IV of the Executive Schedule.
 So in original. Probably should be “therefor,”.
Level IV of the Executive Schedule, referred to in text, is set out under section 5315 of Title 5, Government Organization and Employees.
Section was enacted as part of the Department of the Interior, Environment, and Related Agencies Appropriations Act, 2009, and also as part of the Omnibus Appropriations Act, 2009, and not as part of the National Environmental Policy Act of 1969 which comprises this chapter.