Methods and related systems monitor a mobile communications device to determine if it is in a moving vehicle. If the device is determined to be in a moving vehicle, a database is accessed. The database contains information on locally imposed restrictions on usage of mobile communications devices while driving. The obtained information is used to impose appropriate communication restrictions on the mobile device. As long as the mobile communications device continues to be in the moving vehicle, its geographical location is monitored and, if it is determined that the device has entered a new geographical location, the database is again accessed and the restrictions are modified accordingly.