[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: 45CFR607.10] [Page 106] TITLE 45--PUBLIC WELFARE CHAPTER VI--NATIONAL SCIENCE FOUNDATION PART 607_SALARY OFFSET--Table of Contents Sec. 607.10 Statute of limitations. If a debt has been outstanding for more than 10 years after NSF's right to collect the debt first accrued, the agency may not collect by salary offset unless facts material to the Government's right to collect were not known and could not reasonably have been known by the official or officials who were charged with the responsibility for discovery and collection of such debts.