Main gas shut-off valves controlling several piping systems shall be placed an adequate distance from each other so they will be easily accessible for operation and shall be installed so as to be protected from injury. It is recommended that they be plainly marked with a metal tag by the installer so that the piping system supplied through them can be readily identified. It is advisable to place a shut-off valve at every point where safety, convenience of operation and maintenance demand it.
In multiple-tenant buildings supplied through master meters or where meters are not readily accessible from the appliance location, an individual shut-off valve for each apartment or for each separate house line shall be provided at a convenient point of general accessibility.
(Ord. 368. Passed 8-4-50.