24 C.F.R. § 85.1 Applicability of and cross reference to 2 CFR part 200.
(a) Federal awards with State, local and Indian tribal governments are subject to the Uniform Administrative Requirements, Cost Principles and Audit Requirements for Federal Awards at 2 CFR part 200.
(b) Federal awards made prior to December 26, 2014 will continue to be governed by the regulations in effect and codified in 24 CFR part 85 (2013 edition) or as provided by the terms of the Federal award. Where the terms of a Federal award made prior to December 26, 2014, state that the award will be subject to regulations as may be amended, the Federal award shall be subject to 2 CFR part 200.