This bill, known as the "CBP Workload Staffing Model Act," mandates the Commissioner of U.S. Customs and Border Protection to develop and implement comprehensive workload staffing models for the U.S. Border Patrol and Air and Marine Operations within one year. These models are intended to improve the identification of staffing needs and ensure adequate personnel resources for frontline operations. The legislation requires the staffing models to consider essential frontline activities, diverse operating environments, existing and planned infrastructure and technology, and necessary operations support levels. It also directs the establishment of a workforce tracking system with standard operating procedures, training, and internal controls for accurate reporting of work hours across the U.S. Border Patrol, Air and Marine Operations, and the Office of Field Operations. The Secretary of Homeland Security must provide annual status updates to Congress on the implementation of these models, including data sources and methodology. Additionally, the Department of Homeland Security's Inspector General will review the developed staffing models, offering feedback and recommendations to Congress and the Secretary, particularly in response to previous Inspector General audits.