The site is cleared of logs, roots, stumps and wood debris (construction waste included) that could raise termite risk or damage footings, slabs or drainage, and surface and subsurface water is diverted so it cannot flow or pond under the building (by filling, grading or drains), protecting framing from lasting damp and insects.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.