AC stands for Advisory Circular. Which of the following best describes this publication type?

• A. Advisory Circular
• B. Airman Certification Standards
• C. Advanced Aviation Training Device
• D. Title 14 CFR

Answer: (A)

Advisory Circulars describe how the FAA expects you to interpret and apply regulations, providing guidance on acceptable means of compliance and recommended practices. They help pilots and operators understand FAA policies, procedures for approvals, and practical examples, but they don’t, by themselves, create new binding requirements. Because of their advisory, informational nature, they’re a go-to reference for interpreting regulatory expectations and for learning how to implement them safely and effectively.

Airman Certification Standards, in contrast, establish the knowledge and skill standards used for testing and certification. Advanced Aviation Training Device refers to a training tool used in instruction, not a publication describing compliance. Title 14 CFR is the body of regulations themselves, the binding rules, rather than a guidance publication.