; (2) consider volume from seasonal surges, other projected changes in commercial and passenger volumes, the most current commercial forecasts, and other relevant information; (3) consider historical volume and forecasts prior to the COVID–19 pandemic and the impact on international travel; and (4) incorporate personnel requirements for increasing the rate of outbound inspection operations at land ports of entry. (d) GAO report If the Commissioner does not hire the 600 additional U.S. Customs and Border Protection officers authorized under subsection (a) during fiscal year 2024, 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