// CODE SNIPPET
1312.3 Main Valves
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A shutoff valve shall be provided in the main supply line inside of the building, except where
one or more of the following conditions exist:
- The source and source valve are located inside the building served.
- The source system is physically mounted to the wall of the building served, and the pipeline enters the building in the immediate vicinity of the source valve. [NFPA 99:5.1.4.5]
The main line valve shall be located to permit access by authorized personnel only. [NFPA 99:5.1.4.5.1]
The main line valve shall be located on the facility side of the source valve and
outside of the source room, enclosure, or where the
main line first enters the building. [NFPA 99:5.1.4.5.2]
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