"Modular Construction involves the off-site construction of buildings in a factory.  Because the buildings arrive as closed construction (there are structural, electrical, plumbing and fire service elements that cannot be seen), inspections and approval for the work off site is done in the factory where the building or component is built.  The State of New Jersey participates in an Interstate Compact for the construction of modular buildings.  For states participating in the compact, such as New Jersey, an Industrialized buildings Commission (IBC) label is affixed attesting to the fact that the unit has passed the required inspections in the factory and meets the participating States codes.  Questions or complaints about modular construction can be directed to the Bureau of Code Services at
(609) 984-7974."