Clear the area around the main gas shut-off valve for quick and easy access in case of an emergency. You may want to paint the shut-off valve with white or flourescent paint so that it can be located easily in an emergency. They can send a service representative to your house to show you the proper procedure and check the valve and pilot lights to be sure they operate properly. Your house may be equipped with fuses or circuit breakers. The main circuit breaker should be clearly marked showing on and off positions.
Shorts can sometimes develop to cause a circuit to bypass the breaker or fuse.
They need to know what the utilities look like in both on and off positions. You will see a gate valve on the pipe. If you know you have leaks after an earthquake, you can shut off all water in your house with this valve. You may wish to paint the valve so it is easy to find in an emergency. Open the cover with a long screwdriver or specialty tool.