17Additional InformationCertificationThis booster seat meets or exceeds allapplicable requirements of Federal MotorVehicle Safety Standard 213 for use in motorvehicles.Warm Weather UseBooster seat parts can get very hot inthe sun or warm weather.To avoid burns, always check boosterseat before putting child in booster seat.Vehicle Seat ProtectionProtect vehicle seat. Use a thin boosterseat mat, thin towel or thin blanketunder booster seat.Booster seat Useful LifeDO NOT use after 7 years from manufacturereddate located on bottom of booster seat.Not all vehicle seat belts will work with this boosterseat. You must determine if your vehicle seat beltsare compatible with this booster seat.Aircraft UseThis Booster Seat is NOT certifiedfor use on aircraft.Car seats without harness systems are NOTcertified for use on aircraft because there is noshoulder belt available on aircraft.