; (M) staffing requirements for all departmental border security functions; (N) a prioritized list of departmental research and development objectives to enhance the security of the southern border; (O) an assessment of training programs, including training programs for— (i) identifying and detecting fraudulent documents; (ii) understanding the scope of enforcement authorities and the use of force policies; and (iii) screening, identifying, and addressing vulnerable populations, such as children and victims of human trafficking; and (P) an assessment of how border security operations affect border crossing times. B Personnel 131. Additional U.S. Customs and Border Protection agents and officers (a) Border patrol agents Not later than September 30, 2021, the Commissioner of U.S. Customs and Border Protection shall hire, train, and assign sufficient agents to maintain an active duty presence of not fewer than 26,370 full-time equivalent agents. (b) CBP officers In addition to positions authorized before the date of the enactment of this Act and any existing officer vacancies within U.S. Customs and Border Protection as of such date, the Commissioner, subject to the availability of appropriations, shall hire, train, and assign to duty, not later than September 30, 2021— (1) sufficient U.S. Customs and Border Protection officers to maintain an active duty presence of not fewer than 27,725 full-time equivalent officers