Baseline: employ measures to impede unauthorized access; keep any fences free of gaps at gates and beneath the fence line, with a clear zone of several feet on each side free of vegetation or objects usable for concealment or climbing. Enhanced: create a perimeter that stops unauthorized vehicles entering the facility or critical areas by installing and maintaining barriers such as fences, bollards or jersey barriers.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.