Who must implement the actions outlined in a TSA Security Directive?

The actions outlined in a TSA Security Directive must be implemented by air carriers, airports, and crew members because these entities are directly responsible for maintaining the security and safety of air travel in accordance with federal regulations. Air carriers have an obligation to adhere to security protocols that protect passengers and cargo, while airports are tasked with managing the physical environment where boarding and security checks occur. Crew members, including flight attendants, play a vital role in enforcing these protocols on the aircraft and ensuring compliance with security measures during the flight. This collaborative effort among all three groups is essential for effective implementation of the directives as they are designed to address potential security risks in real-time.

The other options do not encompass the full scope of responsibility that these entities hold. For example, airport management alone cannot ensure the enforcement of security measures without the cooperation of air carriers and crew members, and passengers are not responsible for implementing security directives but rather comply with them. Similarly, airline maintenance personnel have specific duties that do not typically include the direct implementation of security directives.