1200.20—General.
Except as otherwise provided in this subpart and subject to the provisions herein, the requirements of 49 CFR part 18 and applicable cost principles govern the implementation and management of State highway safety programs carried out under 23 U.S.C. 402. Cost principles include those referenced in 49 CFR 18.22 and those set forth in applicable Department of Transportation, NHTSA, or FHWA Orders.