SC S0575

Defines key terms for building codes including "climatological" (susceptibility to weather conditions like hurricanes, tornadoes, flooding) and "physical" (land characteristics like topography, geology, seismic activity)

Requires the South Carolina Building Codes Council to grant local modifications to building codes when municipalities or counties demonstrate that codes don't meet local needs due to physical or climatological conditions

Establishes that the Council must give deference to local governing bodies' findings when reviewing modification requests, and may only deny requests that are "manifestly unreasonable" or pose clear risks to public health, safety, and welfare

Sets specific criteria for approval of local modifications, including authorization by local governing body, demonstration of physical or climatological basis, and showing that modifications won't adversely affect public safety

Requires the Council to define boundaries for physical or climatological conditions using geographic features like highways, waterbodies, or ridgelines rather than political boundaries