7 C.F.R. § 550.108
This part supersedes and takes precedence over any individual REE regulations and directives dealing with executed and administered non-assistance cooperative agreements entered into under the delegated authority of 7 U.S.C. 3318(b) . This part may only be superseded, in whole or in part, by a specifically worded Federal statute, regulation, or Executive Order. Deviations from specific provisions of part 550 must be authorized by the USDA-REE-Administrative and Financial Management (AFM)-Financial Management and Agreements Division (FMAD), or any successor organization, based on a documented justification. In the interest of maximum uniformity, exceptions from any requirements of this Part will be permitted only in unusual circumstances. Responsibility for developing, interpreting, and updating this Part is assigned to the USDA-REE-AFM-FMAD, or any successor organization.
7 C.F.R. § 550.108