C.F.R. » Title 10 » CHAPTER I—NUCLEAR REGULATORY COMMISSION › PART 34—LICENSES FOR INDUSTRIAL RADIOGRAPHY AND RADIATION SAFETY REQUIREMENTS FOR INDUSTRIAL RADIOGRAPHIC OPERATIONS › Subpart E—Recordkeeping Requirements

10 C.F.R. § 34.65

Records of radiation survey instruments

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Each licensee shall maintain records of the calibrations of its radiation survey instruments that are required under § 34.25 and retain each record for 3 years after it is made.