12 Va. Admin. Code § 5-481-3262
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."
§ 32.1-229 of the Code of Virginia.
Derived from Virginia Register Volume 32, Issue 24, eff. August 25, 2016.