; tier 5 The terms Tier 4 and Tier 5 with respect to background investigations have the meaning given such terms under the Federal Investigative Standards prescribed by the Office of Personnel Management and the Office of the Director of National Intelligence in December 2012. (4) Veteran The term veteran has the meaning given such term in section 101(2) of title 38, United States Code. . (d) Polygraph examiners Not later than September 30, 2021, the Secretary shall increase to not fewer than 150 the number of trained full-time equivalent polygraph examiners for administering polygraphs under the Anti-Border Corruption Act of 2010, as amended by this section. 1144. Training for officers and agents of U.S. Customs and Border Protection (a) In general Section 411(l) of the Homeland Security Act of 2002 ( 6 U.S.C. 211(l) ) is amended to read as follows: (l) Training and continuing education (1) Mandatory training and continuing education The Commissioner shall ensure that every agent and officer of U.S. Customs and Border Protection receives at least 21 weeks of training that is directly related to the mission of the U.S. Border Patrol, Air and Marine, and the Office of Field Operations before the initial assignment of such agents and officers. (2) FLETC The Commissioner shall work in consultation with the Director of the Federal Law Enforcement Training Centers to establish guidelines and curriculum for the training of agents and officers of U.S. Customs and Border Protection under subsection (a). (3) Continuing education The Commissioner shall require all agents and officers of U.S. Customs and Border Protection who are required to undergo training under subsection (a) to participate in not fewer than 8 hours of continuing education annually to maintain and update understanding of Federal legal rulings, court decisions, and Department policies, procedures, and guidelines related to relevant subject matters. (4) Leadership training Not later than 1 year after the date of the enactment of this subsection, the