authority: 46 U.S.C. 2103,
3205,
3306,
3307,
3703,
70034;
46 U.S.C. Chapter 701;
49 U.S.C. 5103,
5106; E.O. 12234, 45 FR 58801, 3 CFR, 1980 Comp., p. 277; E.O. 12777, 56 FR 54757, 3 CFR, 1991 Comp., p. 351; DHS Delegation 00170.1, Revision No. 01.2. Section 31.10-21 is also issued under the authority of sec. 4109, Pub. L. 101-380, 104 Stat. 515