Section 4A: Safety Guidelines 173Acknowledging Special Precautions and theFCC NoticeFCC NoticeThis phone may cause TV or radio interference if used in close proximity toreceiving equipment. The FCC can require you to stop using the phone if suchinterference cannot be eliminated.Vehicles using liquefied petroleum gas (propane or butane) must comply with theNational Fire Protection Standard (NFPA-58). For a copy of this standard, contact theNational Fire Protections Association, One Batterymarch Park, Quincy, MA 02269,Attn.: Publication Sales Division.CautionsAny changes or modifications to your phone not expressly approved in thisdocument could void your warranty for this equipment and void your authority tooperate this equipment. Only use approved batteries, antennas and chargers. Theuse of any unauthorized accessories may be dangerous and void the phone warrantyif said accessories cause damage or a defect to the phone.Although your phone is quite sturdy, it is a complex piece of equipment and can bebroken. Avoid dropping, hitting, bending or sitting on it.Body-Worn OperationTo maintain compliance with FCC RF exposure guidelines, if you wear a handset onyour body, use the Sprint supplied or approved carrying case, holster or other body-worn accessory. If you do not use a body-worn accessory, ensure that the antenna isat least 7/16 inch (1.5 centimeters) from your body when transmitting. Use of non-Sprint approved accessories may violate FCC RF exposure guidelines.For more information about RF exposure, visit the FCC Website at www.fcc.gov.