[Code of Federal Regulations] [Title 13, Volume 1] [Revised as of January 1, 2007] From the U.S. Government Printing Office via GPO Access [CITE: 13CFR143.6] [Page 530] TITLE 13--BUSINESS CREDIT AND ASSISTANCE CHAPTER I--SMALL BUSINESS ADMINISTRATION PART 143_UNIFORM ADMINISTRATIVE REQUIREMENTS FOR GRANTS AND COOPERATIVE Subpart A_General Sec. 143.6 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.