What regulation outlines the requirements for an Advanced Ground Instructor?

The regulation that outlines the requirements for an Advanced Ground Instructor is indeed found in 14 CFR Part 61. This section of the Code of Federal Regulations details the certification requirements for flight instructors, which includes those for ground instruction. Under this part, you can find the specific qualifications, training, and examination standards necessary for an individual to be certified as an Advanced Ground Instructor. This regulation comprehensively covers various instructor certificates, ensuring that instructors possess the theoretical knowledge and teaching abilities needed to effectively educate student pilots on ground knowledge.

In contrast, 14 CFR Part 91 primarily pertains to general operating and flight rules, which do not specifically address ground instructor requirements. 49 CFR Part 175 concerns the transport of hazardous materials, which is unrelated to ground instruction criteria. 14 CFR Part 141 deals with pilot schools and their certification but does not detail the requirements for individual ground instructors. Therefore, Part 61 is the appropriate reference for understanding the qualifications necessary to serve as an Advanced Ground Instructor.