In order to carry passengers you are required to have made three takeoffs and three landings in the previous 90 days in an airplane of the same category, class and type (if a type rating is required) in which you'll be taking your passengers for a ride [61.57 (a) (1)]. Category is the broad grouping of aircraft such as airplane, rotorcraft, glider, etc. Class is a narrower definition, such as single-engine land, multiengine, or single-engine seaplane, etc. Type in this instance applies only to a large airplane or turbojet that requires a pilot to have a specific type rating to fly. If you're going to be taking the passengers up in an airplane with a tailwheel, the takeoffs and landings logged have to be in a tailwheel airplane and the landings have to be to a full stop. No touch-and-goes [61.57 (a) (1) (ii)].