Electrical work should be inspected by private electrical inspections services. They issue compliance certificates for work performed by licensed electricians. Once the work has been inspected, a copy of the Electrical Certificate should be furnished to the Building Department.
A building permit application is
required to install generators.
Please note, an Electrical Certificate is not required for:
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Replacement of devices including fuses, lamps, wall outlets and similar devices that do not disturb the fixed wiring system.
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Electrical work that involve currents under 25 volts (for example, doorbell circuits).