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// CODE SNIPPET

5704.2.9.7.5 Overfill Prevention

Fire Code 2018 of Colorado > 57 Flammable and Combustible Liquids > 5704 Storage > 5704.2 Tank Storage > 5704.2.9 Above-Ground Tanks > 5704.2.9.7 Additional Requirements for Protected Above-Ground Tanks > 5704.2.9.7.5 Overfill Prevention
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Protected above-ground tanks shall not be filled in excess of 95 percent of their capacity. An overfill prevention system shall be provided for each tank. During tank-filling operations, the system shall comply with one of the following:
  1. The overfill prevention system shall include the following:
    1. 1.1. An independent means of notifying the person filling the tank that the fluid level has reached 90 percent of tank capacity by providing an audible or visual alarm signal, providing a tank level gauge marked at 90 percent of tank capacity, or other approved means.
    2. 1.2. Automatic shut off of the flow of fuel to the tank when the quantity of liquid in the tank reaches 95 percent of tank capacity. For rigid hose fuel-delivery systems, an approved means shall be provided to empty the fill hose into the tank after the automatic shutoff device is activated.
  2. The system shall reduce the flow rate to not more than 15 gallons per minute (0.95 L/s) so that at the reduced flow rate, the tank will not overfill for 30 minutes, and automatically shut off flow into the tank so that none of the fittings on the top of the tank are exposed to product because of overfilling.

5704.2.9.7.5.1 Information Signs

A permanent sign shall be provided at the fill point for the tank, documenting the filling procedure and the tank calibration chart.
Exception: Where climatic conditions are such that the sign may be obscured by ice or snow, or weathered beyond readability or otherwise impaired, said procedures and chart shall be located in the office window, lock box or other area available to the person filling the tank.

5704.2.9.7.5.2 Determination of Available Tank Capacity

The filling procedure shall require the person filling the tank to determine the gallonage (literage) required to fill it to 90 percent of capacity before commencing the fill operation.

Related Code Sections


5704.2.7.5.8 Flammable and Combustible Liquids, Overfill Prevention
An approved means or method in accordance with Section 5704.2.9.7.5 shall be provided to prevent the overfill of all Class I, II and IIIA liquid ...
Fire Code 2021 of Colorado > 57 Flammable and Combustible Liquids > 5704 Storage > 5704.2 Tank Storage > 5704.2.7 Design, Fabrication and Construction Requirements for Tanks > 5704.2.7.5 Tank Openings Other Than Vents > 5704.2.7.5.8 Overfill Prevention
5704.2.7.5.8 Flammable and Combustible Liquids, Overfill Prevention
An approved means or method in accordance with Section 5704.2.9.7.5 shall be provided to prevent the overfill of all Class I, II and IIIA liquid ...
Fire Code 2018 of Colorado > 57 Flammable and Combustible Liquids > 5704 Storage > 5704.2 Tank Storage > 5704.2.7 Design, Fabrication and Construction Requirements for Tanks > 5704.2.7.5 Tank Openings Other Than Vents > 5704.2.7.5.8 Overfill Prevention
2307.8 Motor Fuel-Dispensing Facilities and Repair Garages, Overfilling
on the container, the volume determined by the overfilling prevention device installed on the container or the weight determined by the required percentage ...
Fire Code 2021 of Colorado > 23 Motor Fuel-Dispensing Facilities and Repair Garages > 2307 Liquefied Petroleum Gas Motor Fuel-Dispensing Facilities > 2307.8 Overfilling
2307.8 Motor Fuel-Dispensing Facilities and Repair Garages, Overfilling
on the container, the volume determined by the overfilling prevention device installed on the container or the weight determined by the required percentage ...
Fire Code 2018 of Colorado > 23 Motor Fuel-Dispensing Facilities and Repair Garages > 2307 Liquefied Petroleum Gas Motor Fuel-Dispensing Facilities > 2307.8 Overfilling
5704.2.11.3 Flammable and Combustible Liquids, Overfill Protection and Prevention Systems
Fill pipes shall be equipped with a spill container and an overfill prevention system in accordance with NFPA 30 ...
Fire Code 2018 of Colorado > 57 Flammable and Combustible Liquids > 5704 Storage > 5704.2 Tank Storage > 5704.2.11 Underground Tanks > 5704.2.11.3 Overfill Protection and Prevention Systems
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