10 CFR 39.49 - Uranium sinker bars.

§ 39.49 Uranium sinker bars.
The licensee may use a uranium sinker bar in well logging applications only if it is legibly impressed with the words “CAUTION—RADIOACTIVE-DEPLETED URANIUM” and “NOTIFY CIVIL AUTHORITIES (or COMPANY NAME) IF FOUND.”
[65 FR 20345, Apr. 17, 2000]

Title 10 published on 2014-01-01

no entries appear in the Federal Register after this date.