Section 61.301 - What is the purpose of this subpart and to whom does it apply?(a) This subpart prescribes the following requirements that apply to a sport pilot certificate: (2) Aeronautical knowledge.(4) Aeronautical experience.(6) Privileges and limits.(b) Other provisions of this part apply to the logging of flight time and testing.(c) This subpart applies to applicants for, and holders of, sport pilot certificates. It also applies to holders of recreational pilot certificates and higher, as provided in § 61.303 .Doc. No. FAA-2001-11133, 69 FR 44869, July 27, 2004, as amended by Amdt. 61-125, 75 FR 5221, Feb. 1, 2010