§ 7704.
(a)
If it is shown at a hearing under this chapter that a holder of a license, certificate of registry, or merchant mariner’s document issued under this part, within 10 years before the beginning of the proceedings, has been convicted of violating a dangerous drug law of the United States or of a State, the license, certificate, or document shall be suspended or revoked.
(b)
If it is shown that a holder has been a user of, or addicted to, a dangerous drug, the license, certificate of registry, or merchant mariner’s document shall be revoked unless the holder provides satisfactory proof that the holder is cured.
([Pub. L. 98–89], Aug. 26, 1983, [97 Stat. 546]; [Pub. L. 99–36, § 1(a)(9)(F)], (G), May 15, 1985, [99 Stat. 68]; [Pub. L. 101–380, title IV, § 4103(a)(2)(B)], Aug. 18, 1990, [104 Stat. 511]; [Pub. L. 108–293, title IV, § 402], Aug. 9, 2004, [118 Stat. 1043]; [Pub. L. 115–232, div. C, title XXXV, § 3545(b)], Aug. 13, 2018, [132 Stat. 2326].)