Final answer:
The information on the requirements for a pilot certificate can be found in Part 61 of the Federal Aviation Regulations (FARs).
Step-by-step explanation:
The requirements for a pilot certificate in the United States are outlined in the Federal Aviation Regulations (FARs). Specifically, the information can be found in Part 61, titled 'Certification: Pilots, Flight Instructors, and Ground Instructors.'
This part of the FARs provides details on the eligibility requirements, application process, training, and other associated requirements for obtaining different types of pilot certificates, such as private pilot, commercial pilot, and airline transport pilot certificates.
For more specific details and the latest updates, it is recommended to refer to the most current version of the FARs.