(a) To qualify for an endorsement as able seaman authorized by this section, an applicant must provide satisfactory proof that the applicant—
(Pub. L. 98–89, Aug. 26, 1983, 97 Stat. 542; Pub. L. 98–364, title IV, § 402(9)(C), July 17, 1984, 98 Stat. 448.)