; and (2) consider volume due to regional humanitarian conditions, seasonal increases, other projected changes in commercial and passenger volumes, the most current commercial forecasts, and other relevant information. (g) Staffing updates Not later than 90 days after the date of enactment of this Act, the Commissioner of U.S. Customs and Border Protection shall report to Congress on the status of efforts to implement subsections (a) through (e). (h) Amendment Subparagraph (A) of section 411(g)(5) of the Homeland Security Act of 2002 ( 6 U.S.C. 211(g)(5) ) is amended— (1) by striking model and inserting models ; (2) by inserting humanitarian and agricultural specialists, child welfare professionals, before and support personnel ; and (3) by inserting before the period at the end the following: , and shall also provide information concerning the progress made toward meeting officer, humanitarian and agriculture specialists, child welfare professionals, and support staff hiring targets, while accounting for attrition . (i) GAO report If by March 31, 2020, the Commissioner of U.S. Customs and Border Protection has not hired at least 100 additional humanitarian specialists and 100 child welfare professionals in accordance with subsection (b) or at least 200 additional U.S. Customs and Border Protection officers in accordance with subsection (a), and in any subsequent fiscal year in which the staffing levels specified in the applicable Workload Staffing Model have not been achieved, the Comptroller General of the United States shall— (1) conduct a review of U.S. Customs and Border Protection hiring policies and processes to identify factors contributing to such levels not being achieved and any other issues related to hiring by U.S. Customs and Border Protection; (2) consider attrition levels within the Office of Field Operations to identify associated factors contributing to attrition within the workforce of such Office