[Code of Federal Regulations] [Title 45, Volume 3] [Revised as of October 1, 2005] From the U.S. Government Printing Office via GPO Access [CITE: 45CFR620.410] [Page 170] TITLE 45--PUBLIC WELFARE CHAPTER VI--NATIONAL SCIENCE FOUNDATION PART 620_GOVERNMENTWIDE DEBARMENT AND SUSPENSION (NONPROCUREMENT) --Table of Contents Subpart D_Responsibilities of National Science Foundation Officials Regarding Transactions Sec. 620.410 May I approve a participant's use of the services of an excluded person? After entering into a covered transaction with a participant, you as an agency official may not approve a participant's use of an excluded person as a principal under that transaction, unless you obtain an exception under Sec. 620.120. [[Page 171]]