[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: 45CFR620.365] [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. 620.365 What must I do if I learn of information required under Sec. 620.355 after entering into a covered transaction with a higher tier participant? At any time after you enter into a lower tier covered transaction with a person at a higher tier, you must provide immediate written notice to that person if you learn either that-- (a) You failed to disclose information earlier, as required by Sec. 620.355; or (b) Due to changed circumstances, you or any of the principals for the transaction now meet any of the criteria in Sec. 620.355.