Which of the following is NOT a requirement for an ATC tower certificate?

The requirement for passing a medical exam is not applicable for obtaining an ATC tower certificate. While other factors play a crucial role in ensuring a person is qualified to operate within the framework of air traffic control, the specifics for tower certification focus more on behavioral and linguistic competencies rather than medical evaluations.

Good moral character is essential as it reflects the ethical responsibilities that air traffic controllers must uphold in their roles. Being at least 18 years old aligns with legal standards for work and accountability in the aviation industry. Proficiency in reading and writing English is critical for comprehension and effective communication in a profession where clear instructions and information exchange are vital to safety.

By understanding these requirements, it becomes clearer how the roles and responsibilities of air traffic control necessitate these specific traits and skills, and why a medical exam is not a standardized requirement for tower certification.