**A New Era for Airport Security** Brussels Airport has announced a comprehensive overhaul of its passenger security screening infrastructure, with the gradual deployment of CT (computed tomography) scanners and body scanners starting in 2028. By summer 2029, all 19 departure security lanes will be equipped with these next-generation devices, eliminating the need for passengers to remove liquids or electronic devices from their cabin baggage. This transformation is part of the airport's Hub 3.0 program, a strategic investment to enhance capacity, passenger comfort, and security efficiency in a competitive European hub landscape. **How CT Scanners Work and What Changes** CT scanners, also known as C3 scanners in European terminology, use advanced X-ray technology to produce 3D images of bag contents, allowing security operators to examine items from any angle. This enables precise detection of solid and liquid explosives, and under current European regulations, permits liquids to remain in bags in containers up to 2 liters—a significant relaxation from the previous 100 ml limit. For ATPL and ATC students, this shift is a real-world example of how technology drives regulatory change: the same scanners that improve passenger flow also raise the bar for threat detection, requiring operators to interpret complex 3D imagery rather than flat X-ray scans. Understanding these systems is increasingly relevant as more airports adopt them, affecting security protocols, passenger briefing, and even emergency response planning. **Phased Implementation and Operational Impact** The deployment will be phased to minimize disruption. Preparatory work begins in 2025, with a temporary security platform operational in 2027. The first new scanners go live in 2028, followed by progressive rollout across all lanes until summer 2029. A second phase will extend the technology to transfer passengers, a critical upgrade for a hub handling significant transit traffic. For aviation professionals, this phased approach mirrors typical large-scale infrastructure projects in aviation—balancing operational continuity with technological upgrade. It also highlights the importance of contingency planning, temporary facilities, and stakeholder communication, all key competencies for future airline and airport managers. **Broader Context: European Regulatory Landscape** While CT scanners promise greater convenience, the regulatory framework remains fluid. The European Commission reintroduced a 100 ml limit per container for certain new-generation scanner uses as of September 2024, a move criticized by ACI Europe. This back-and-forth underscores a tension between security innovation and harmonized regulation—a theme ATPL and ATC students will encounter in their studies of international aviation law and security standards. Brussels Airport's commitment to full deployment by 2029 suggests confidence that regulatory alignment will follow, but the situation remains dynamic. **Why This Matters for ATPL and ATC Students** For aspiring pilots and air traffic controllers, this news is not just about passenger convenience. It reflects how technological evolution reshapes airport operations, security procedures, and regulatory compliance—all areas that directly affect flight planning, turnaround times, and passenger handling. Understanding the capabilities and limitations of CT scanners helps future aviation professionals anticipate changes in security screening, communicate effectively with ground staff, and adapt to evolving standard operating procedures. Moreover, the Hub 3.0 program exemplifies the kind of strategic infrastructure investment that defines competitive hubs, a concept central to airline network planning and ATC flow management.