MLFD's Prevention Division assists business owners in implementing minimum requirements consistent with nationally recognized good practices in order to safeguard the health, safety and general welfare of the community. Our goal is to protect local businesses and the public from the hazards of fire, explosion or dangerous conditions that may exist in buildings, structures and premises, and while not every disaster can be prevented, MLFD has a checklist of ways to ensure that your business remains safe.


PREVENTION IS THE KEY to a safe business. You can conduct your own fire safety inspection by completing the online self inspection form below. Self inspection is a useful resource; however, it in no way should be substituted for an official Mammoth Lakes Fire Protection District inspection. 


    1. Fire Extinguishers - Portable fire extinguishers shall be installed, inspected, and maintained annually by a California State Fire Marshal licensed technician. Fire extinguishers shall be visible and mounted in public view.  If that cannot be maintained, a sign/label shall be placed to indicate the location of the fire extinguisher. Portable fire extinguishers shall not be obstructed or obscured from view.
    1. Electrical Hazards - Extension cords are not allowed to be used as permanent wiring. Open junction boxes and open-wiring splices are prohibited, and all electrical outlets are required to have a face/cover plate. Electrical wiring, devices, appliances, and other equipment that is modified or damaged and constitutes an electrical shock or fire hazard shall not be used.
    2. Electrical Panels - Electrical panels must be accessible and visible.  No storage in front of electrical panels. A working space of not less than 30 inches in width, 36 inches in depth and 78 inches in height shall be provided in front of electrical service equipment.
    3. Smoke and Carbon Monoxide - Smoke detectors shall be required in all A, B, M, R, and S occupancies regardless of construction type to alert occupants or passersby of an incident. Carbon monoxide detectors in commercial buildings are required at least one per level.
    4. Propane Detectors - LPG detectors shall be installed wherever LPG is provided, or an LPG appliance is in use.
    5. Exit Signs – Exit signs and access doors must be visible in the direction of travel providing an exit path of the building. Exit signs shall be illuminated at all times, and have a backup battery supply with not less than 90-minutes of backup power. Exceptions: Exit signs are not required in rooms or areas that require only one exit or exit access. Main exterior exit doors or gates that are obviously and clearly identifiable as exits need not have exit signs where approved by the fire code official
    6. Compressed Gas Cylinders – Compressed gas cylinders must be secured at all times. Compressed gas containers, cylinders and tanks shall be secured to prevent falling caused by contact, vibration or seismic activity.
    7. Hazardous Chemicals – A 704 Hazardous Materials Placard is required outside any room containing hazardous materials.
    8. Storing More than 10-Gallons of Flammable Liquids – No more than 10 gallons of flammable and/or combustible liquids are allowed.  Quantities more than 10 gallons require the products to be put into a certified flammable/combustible liquids locker or cabinet.
    9. Storage with a Fire Suppression System – Storage shall not be any higher than 18 inches below the ceiling if the building has a fire sprinkler system. The 18-inch ceiling clearance is not required for storage along walls in areas of buildings equipped with an automatic sprinkler system.
    10. Storage without a Fire Suppression System – Storage shall not be any higher than 24 inches below the ceiling if the building does not have fire sprinklers. The 24-inch ceiling clearance is not required for storage along walls in areas of buildings equipped with an automatic sprinkler system.
    11. Fire Alarm and Fire Sprinklers Systems – Fire alarm system shall be inspected and maintained annually by a licensed C-10 electrician. The fire alarm system shall also have an inspection tag attached to the panel. Fire sprinklers systems shall be inspected and maintained annually as well as have a current five-year inspection tag. Inspections shall be conducted by a California State Fire Marshal licensed technician.

    NOTED: Some of the above requirements may not apply to your facility or business. For an example, if a sprinkler system is not installed in facility or business that requirement is not applicable to your facility or business. If you have questions regarding the above items, please contact the Prevention Bureau at (760) 934-2300 and ask for an Inspector or the Fire Marshal.



  • (760) 934-2300
  • 3150 Main Street
    Mammoth Lakes, CA 93546
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