168care facilities may be using equipment that could besensitive to external RF energy.VehiclesRF signals may affect improperly installed orinadequately shielded electronic systems in motorvehicles. Check with the manufacturer or itsrepresentative regarding your vehicle before usingyour mobile device in a motor vehicle. You should alsoconsult the manufacturer of any equipment that hasbeen added to your vehicle.Posted FacilitiesSwitch your mobile device off in any facility whereposted notices require you to do so.Potentially Explosive EnvironmentsSwitch your mobile device off when in any area with apotentially explosive atmosphere and obey all signsand instructions. Sparks in such areas could cause anexplosion or fire resulting in bodily injury or evendeath. Users are advised to switch the mobile deviceoff while at a refueling point (service station). Usersare reminded of the need to observe restrictions onthe use of radio equipment in fuel depots (fuel storageand distribution areas), chemical plants, or whereblasting operations are in progress. Areas with apotentially explosive atmosphere are often, but notalways, clearly marked. They include below deck onboats, chemical transfer or storage facilities, vehiclesusing liquefied petroleum gas (such as propane orbutane), areas where the air contains chemicals orparticles, such as grain, dust, or metal powders, andany other area where you would normally be advisedto turn off your vehicle engine.FCC Hearing Aid Compatibility (HAC)Regulations for Wireless DevicesOn July 10, 2003, the U.S. Federal CommunicationsCommission (FCC) Report and Order in WT Docket 01-309 modified the exception of wireless mobiledevices under the Hearing Aid Compatibility Act of1988 (HAC Act) to require digital wireless mobiledevices be compatible with hearing aids.The intent of the HAC Act is to ensure reasonableaccess to telecommunications services for personswith hearing disabilities. While some wireless mobiledevices are used near some hearing devices (hearingaids and cochlear implants), users may detect abuzzing, humming, or whining noise. Some hearingdevices are more immune than others to thisinterference noise, and mobile devices also vary inthe amount of interference they generate.The wireless telephone industry has developed arating system for wireless mobile devices to assisthearing device users find mobile devices that may becompatible with their hearing devices. Not all mobiledevices have been rated. Mobile devices that arerated have the rating on their box or a label located onthe box.The ratings are not guarantees. Results will varydepending on the user's hearing device and hearingloss. If your hearing device happens to be vulnerableto interference, you may not be able to use a ratedmobile device successfully. Trying out the mobile