New Jersey Statutes Title 39. Motor Vehicles and Traffic Regulation 39 § 4-8.11

Any speed hump constructed by a municipality or a board of directors or trustees shall conform in design and construction to the technical standards established by the Department of Transportation.

A municipality or board shall provide advance warning, including but not limited to, the erection of appropriate signs giving notice of the presence of speed humps before the first speed hump in a series of speed humps and provide for a pavement marker to be placed at the location of the first speed hump. The signing and pavement markings for a speed hump shall conform to the current standards prescribed in the Manual of Uniform Traffic Control Devices for Streets and Highways as adopted by the Commissioner of Transportation.