[Code of Federal Regulations] [Title 14, Volume 5] [Revised as of January 1, 2007] From the U.S. Government Printing Office via GPO Access [CITE: 14CFR1273.6] [Page 439] TITLE 14--AERONAUTICS AND SPACE CHAPTER V--NATIONAL AERONAUTICS AND SPACE ADMINISTRATION PART 1273_UNIFORM ADMINISTRATIVE REQUIREMENTS FOR GRANTS AND COOPERATIVE Subpart A_General Sec. 1273.6 Additions and exceptions. (a) For classes of grants and grantees subject to this part, Federal agencies may not impose additional administrative requirements except in codified regulations published in the Federal Register. (b) Exceptions for classes of grants or grantees may be authorized only by OMB. (c) Exceptions on a case-by-case basis and for subgrantees may be authorized by the affected Federal agencies.