AC stands for which term in aviation?

• A. Advisory Circular
• B. Advanced Aviation Training Device
• C. Airman Certification Standards
• D. Title 14 of the Code of Federal Regulations

Answer: (A)

AC in aviation publications stands for Advisory Circular. These FAA documents provide guidance to help interpret and apply regulations, offering suggested practices, procedures, and explanations. They’re helpful for understanding how to meet regulatory requirements, but they’re not mandatory themselves—the actual rules come from the CFR. For example, an Advisory Circular might outline recommended methods for flight training or certification processes and reference the relevant regulations, helping you apply them more clearly in real-world situations. The other items refer to different things: an Advanced Aviation Training Device is a type of training simulator, Airman Certification Standards are the criteria used to evaluate knowledge and skills, and Title 14 of the CFR is the actual body of aviation regulations.