Section 4: Safety Guidelines and Warranty Information4A: Safety 91Acknowledging Special Precautions and theFCC NoticeFCC NoticeThe phone may cause TV or radio interference if used in close proximityto receiving equipment. The FCC can require you to stop using the phoneif such interference cannot be eliminated.Vehicles using liquefied petroleum gas (such as propane or butane) mustcomply with the National Fire Protection Standard (NFPA-58). For a copyof this standard, contact the National Fire Protection Association,One Batterymarch Park, Quincy, MA 02269, Attn: PublicationSales Division.CautionsAny changes or modifications to your phone not expressly approved inthis document could void your warranty for this equipment, and voidyour authority to operate this equipment. Only use approved batteries,antennas and chargers. The use of any unauthorized accessories may bedangerous and void the phone warranty if said accessories cause damageor a defect to the phone.Although your phone is quite sturdy, it is a complex piece of equipmentand can be broken. Avoid dropping, hitting, bending or sitting on it.Body-Worn OperationTo maintain compliance with FCC RF exposure guidelines, if you wear ahandset on your body, use the Sprint supplied or approved carrying case,holster or other body-worn accessory. If you do not use a body-wornaccessory, ensure that the antenna is at least one inch (2.5 centimeters)from your body when transmitting. Use of non-Sprint approvedaccessories may violate FCC RF exposure guidelines.For more information about RF exposure, please visit the FCC Web site atwww.fcc.gov.