; and (2) consider volume from seasonal surges, other projected changes in commercial and passenger volumes, the most current commercial forecasts, and other relevant information. (e) GAO report If the Commissioner does not hire 600 additional Office of Field Operations officers pursuant to subsection (a) during fiscal year 2020, or during any subsequent fiscal year in which the hiring requirements set forth in the 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 practices to determine the reasons that such requirements were not achieved and other issues related to hiring by U.S. Customs and Border Protection; and (2) submit a report to the Committee on Homeland Security and Governmental Affairs of the Senate and the Committee on Homeland Security of the House of Representatives that describes the results of the review conducted under paragraph (1). (f) U.S. Immigration and Customs Enforcement personnel increases The Director of U.S. Immigration and Customs Enforcement shall hire, train, and assign— (1) not fewer than 1,000 new Enforcement and Removal Operations Officers; (2) not fewer than 665 Enforcement and Removal Operations support personnel to address case management responsibilities; (3) not fewer than 128 attorneys in the Office of the Principal Legal Advisor