; (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. 1121. Amendments to U.S. Customs and Border Protection (a) Duties Subsection (c) of section 411 of the Homeland Security Act of 2002 ( 6 U.S.C. 211 ) is amended— (1) in paragraph (18), by striking and after the semicolon at the end; (2) by redesignating paragraph (19) as paragraph (21); and (3) by inserting after paragraph (18) the following new paragraphs: (19) administer the U.S. Customs and Border Protection public private partnerships under subtitle G; (20) administer preclearance operations under the Preclearance Authorization Act of 2015 ( 19 U.S.C. 4431 et seq.; enacted as subtitle B of title VIII of the Trade Facilitation and Trade Enforcement Act of 2015; 19 U.S.C. 4301 et seq.); and . (b) Office of Field Operations staffing Subparagraph (A) of section 411(g)(5) of the Homeland Security Act of 2002 ( 6 U.S.C. 211(g)(5) ) is amended by inserting before the period at the end the following: compared to the number indicated by the current fiscal year work flow staffing model . (c) Implementation plan Subparagraph (B) of section 814(e)(1) of the Preclearance Authorization Act of 2015 ( 19 U.S.C. 4433(e)(1) ; enacted as subtitle B of title VIII of the Trade Facilitation and Trade Enforcement Act of 2015