Subchapter XVII. Anti-Trafficking Training for Department of Homeland Security Personnel 6 U.S. Code §641. Definitions 6 U.S. Code §642. Training for Department personnel to identify human trafficking 6 U.S. Code §643. Certification and report to Congress 6 U.S. Code §644. Assistance to non-Federal entities 6 U.S. Code §645. Victim protection training for the Department of Homeland Security 6 U.S. Code §645a. Human trafficking assessment