# Areas Where Special Regulations Apply Switch off the mobile telephone and mobile phone interface in areas where there is an explosion hazard. These areas are not always clearly signposted. This includes, for example: Areas immediately around chemical pipelines and tanks. Lower decks of ships and ferries. The area around vehicles which run on liquid gas, such as propane or butane. Places where there are chemicals or particles such as flour, dust and metal powder in the air. All other places where the engine or mobile telephone must be switched off. # WARNING Switch the mobile telephone and mobile phone interface off in potentially explosive areas and locations where special guidelines apply. # NOTICE Your mobile telephone must always be switched off in areas where special regulations apply and when the use of mobile telephones is forbidden. The radiation produced by the mobile telephone when switched on may interfere with sensitive technical and medical equipment, possibly resulting in malfunction or damage to the equipment.