Surfaces in the facility have to be smooth, not let water through, be easy to clean and stand up to whatever cleaning or decontamination agents will be used there. This applies to (a) walls, floors, benches, doors and windows, (b) furniture, seating included, and (c) any other surface where contamination is likely or decontamination will be needed.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.