A method and system provides for controlling operation of registered devices using the Global Positioning System (GPS). One or more devices in a mobile environment are registered with a GPS navigation system of the mobile environment. In response to the mobile environment moving from a first location to a second location, the GPS navigation system retrieves local law information that specifies or defines the second location using GPS coordinates of the second location. Whether each device of the one or more devices registered with the GPS navigation system is in violation of the local law must be determined. If so, the GPS navigation system automatically controlling operation of each device in violation of the local law so as to not be in violation of the local law.