[Code of Federal Regulations] [Title 10, Volume 1] [Revised as of January 1, 2004] From the U.S. Government Printing Office via GPO Access [CITE: 10CFR34.67] [Page 560] TITLE 10--ENERGY CHAPTER I--NUCLEAR REGULATORY COMMISSION PART 34--LICENSES FOR INDUSTRIAL RADIOGRAPHY AND RADIATION SAFETY REQUIREMENTS FOR INDUSTRIAL RADIOGRAPHIC OPERATIONS--Table of Contents Subpart E--Recordkeeping Requirements Sec. 34.67 Records of leak testing of sealed sources and devices containing depleted uranium. Each licensee shall maintain records of leak test results for sealed sources and for devices containing DU. The results must be stated in units of becquerels (microcuries). The licensee shall retain each record for 3 years after it is made or until the source in storage is removed.