20 USC 2411 - Joint funding

(a) General authority 
Funds made available to eligible agencies under this chapter may be used to provide additional funds under an applicable program if
(1) such program otherwise meets the requirements of this chapter and the requirements of the applicable program;
(2) such program serves the same individuals that are served under this chapter;
(3) such program provides services in a coordinated manner with services provided under this chapter; and
(4) such funds are used to supplement, and not supplant, funds provided from non-Federal sources.
(b) Applicable program 
For the purposes of this section, the term applicable program means any program under any of the following provisions of law:
(1) Chapters 4 and 5 of subtitle B of title I of Public Law 105220 [29 U.S.C. 2851 et seq., 2861 et seq.].
(2) The Wagner-Peyser Act [29 U.S.C. 49 et seq.].
(c) Use of funds as matching funds 
For the purposes of this section, the term additional funds does not include funds used as matching funds.