Those who want to work as flight attendants must be at least 18 years old. Airlines prefer to hire job candidates who have experience working with the public. There are also height requirements since flight attendants must be able to reach overhead bins. Vision must be correctable to 20/40 or better. Flight attendants must be certified by the FAA. This requires one to pass a proficiency check after completing his or her employer's initial training program. Certification applies to only the specific type of aircraft on which an individual is trained.