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PART 1572 - CREDENTIALING AND SECURITY THREAT ASSESSMENTS Authority:46 U.S.C. 70105; 49 U.S.C. 114, 5103a, 40113, and 46105; 18 U.S.C. 842, 845; 6 U.S.C. 469. Source:72 FR 3595, Jan. 25, 2007, unless otherwise noted.