Code 5703 applies to employers engaged in building raising or moving, including incidental shoring, removal or rebuilding of walls, foundations, columns or piers.  This classification also applies to shoring and underpinning operations.  Operations such as excavation, masonry, carpentry, etc., are inclusive under this classification when performed by underpinning contractors and work involving building raising or moving.

When building raising or moving is done, openings (trenches) are dug at various intervals around a  building or structure.  Hydraulic jacks are used to raise a building or structure several feet above the foundation.  Steel beams are placed around the structure for support during the moving operation.  To move the actual structure, dollies are set in place and the structure is lowered onto the dollies with precise maneuvering.  The structure is then transported to another location by means of trailers, set in place on the foundation and is secured as necessary.  Contractors engaged in this operation may also engage in incidental shoring, rebuilding walls, installing piers or columns etc. This work is inclusive under this classification when performed in conjunction with building moving or raising.