251Posted FacilitiesSwitch your mobile device off in any facility where postednotices require you to do so.Potentially Explosive EnvironmentsSwitch your mobile device off when in any area with apotentially explosive atmosphere and obey all signs andinstructions. Sparks in such areas could cause an explosionor fire resulting in bodily injury or even death. Users areadvised to switch the mobile device off while at a refuelingpoint (service station).Users are reminded of the need to observe restrictions on theuse of radio equipment in fuel depots (fuel storage anddistribution areas), chemical plants, or where blastingoperations are in progress. Areas with a potentially explosiveatmosphere are often, but not always, clearly marked. Theyinclude below deck on boats, chemical transfer or storagefacilities, vehicles using liquefied petroleum gas (such aspropane or butane), areas where the air contains chemicalsor particles, such as grain, dust, or metal powders, and anyother area where you would normally be advised to turn offyour vehicle engine. Vehicles using liquefied petroleum gas(such as propane or butane) must comply with the NationalFire Protection Standard (NFPA-58). For a copy of thisstandard, contact the National Fire Protection Association.When your Device is WetDo not turn on your device if it is wet. If your device isalready on, turn it off and remove the battery immediately (ifthe device will not turn off or you cannot remove the battery,leave it as-is). Then, dry the device with a towel and take itto a service center.FCC Hearing Aid Compatibility (HAC)Regulations for Wireless DevicesThe U.S. Federal Communications Commission (FCC) hasestablished requirements for digital wireless mobile devicesto be compatible with hearing aids and other assistivehearing devices.When individuals employing some assistive hearing devices(hearing aids and cochlear implants) use wireless mobiledevices, they may detect a buzzing, humming, or whiningnoise. Some hearing devices are more immune than othersto this interference noise, and mobile devices also vary in theamount of interference they generate.
