1)  IF YOU SMELL GAS, TAKE THE RIGHT STEPS.

Immediately put out all smoking materials and other open flames. Do not operate lights, appliances, telephones, or cellphones. Get everyone away from the home or area where you suspect gas is leaking. If safe to do so, close or shut off the main gas supply valve by turning it to the right (clockwise). Call your propane provider immediately from a safe place to report the leak. If you cannot reach your propane provider, call 911. Do not return to the area until a propane provider, emergency responder, or qualified service technician gives the OK.

2)  NEVER USE A STOVE OR BRING YOUR GAS GRILL INDOORS FOR SPACE HEATING, EVEN DURING A POWER OUTAGE.

Only use appliances indoors that are designed and approved for that purpose. Never store, place, or use a propane cylinder indoors or in enclosed areas. Never use outdoor propane-powered appliances indoors or in enclosed areas. Without proper ventilation, deadly carbon monoxide (CO) fumes produced can build up.
3)  GET IN TOUCH WITH YOUR PROPANE PROVIDER IMMEDIATELY IF YOU RUN OUT OF PROPANE.
A propane provider or qualified service technician must check your system for leaks before turning the gas back on.

4)  STAY IN REGULAR CONTACT WITH YOUR PROVIDER.

Doing so gives you both enough time to arrange a refill long before you run out of propane.