SBCO@ Virginia Uniform Statewide Building Code (USBC) contains the building regulations that must be complied with when constructing a new building, structure, or an addition to an existing building. ChapterDefinitions. ChapterSpecial Detailed Requirements Based on Use and Occupancy VIRGINIA EXISTING BUILDING CO HAPTERADMINISTRATION SECTION GENERAL Short title. It discusses how the VCC is based on nationally recognized model building Virginia Construction Code (VCC) based on the International Bu