14 C.F.R. § 61.115 Balloon rating: Limitations.
Title 14 - Aeronautics and Space
(a) If a person who applies for a private pilot certificate with a balloon rating takes a practical test in a balloon with an airborne heater: (1) The pilot certificate will contain a limitation restricting the exercise of the privileges of that certificate to a balloon with an airborne heater; and (2) The limitation may be removed when the person obtains the required aeronautical experience in a gas balloon and receives a logbook endorsement from an authorized instructor who attests to the person's accomplishment of the required aeronautical experience and ability to satisfactorily operate a gas balloon. (b) If a person who applies for a private pilot certificate with a balloon rating takes a practical test in a gas balloon: (1) The pilot certificate will contain a limitation restricting the exercise of the privilege of that certificate to a gas balloon; and (2) The limitation may be removed when the person obtains the required aeronautical experience in a balloon with an airborne heater and receives a logbook endorsement from an authorized instructor who attests to the person's accomplishment of the required aeronautical experience and ability to satisfactorily operate a balloon with an airborne heater.
Title 14: Aeronautics and Space
PART 61—CERTIFICATION: PILOTS, FLIGHT INSTRUCTORS, AND GROUND INSTRUCTORS
Subpart E—Private Pilots
§ 61.115 Balloon rating: Limitations.

