If the efforts of the State of South Carolina to bar off-shore drilling prove unsuccessful (they may violate the Commerce Clause of the US Constitution), local zoning laws that restrict the use of the current port property to non-industrial uses would effectively prevent the property from being used as a staging area for off-shore drilling operations. Local zoning laws do not violate the commerce clause so long as they do not discriminate based on race or have a racially discriminatory intent.
