[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: 45CFR620.355] [Page 170] TITLE 45--PUBLIC WELFARE CHAPTER VI--NATIONAL SCIENCE FOUNDATION PART 620_GOVERNMENTWIDE DEBARMENT AND SUSPENSION (NONPROCUREMENT) --Table of Contents Subpart C_Responsibilities of Participants Regarding Transactions Sec. 620.355 What information must I provide to a higher tier participant before entering into a covered transaction with that participant? Before you enter into a covered transaction with a person at the next higher tier, you as a lower tier participant must notify that person if you know that you or any of the principals are presently excluded or disqualified.