StacksVerified U.S. regulatory reference

10 CFR §39.47

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
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.