1. Photograph the suspicious signage, documenting its details and context with the building.

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2. Identify and confirm the building’s address using tools such as NYCityMap and Google Street View if it’s not clear.

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3. Use the NYC Department of Buildings Building Information Search to look up the address for permits and complaints related to the suspicious signage. Sign permits are identified as the “SG – SIGN” job type.

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4. If no permit for the sign exists, call 311 and file a complaint and use the NYC Department of Buildings Building Information System to track the status of your complaint.