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Title 10: Energy
CHAPTER I: NUCLEAR REGULATORY COMMISSION
PART 39: LICENSES AND RADIATION SAFETY REQUIREMENTS FOR WELL LOGGING
Subpart C: Equipment
39.47 - Radioactive markers.
The licensee may use radioactive markers in wells only if the individual markers contain quantities of licensed material not exceeding the quantities specified in ? 30.71 of this chapter. The use of markers is subject only to the requirements of ? 39.37.
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