Surfaces in the facility have to be smooth, not let water through, be easy to clean and stand up to the cleaning and decontaminating chemicals actually used there. This covers walls, floors, doors, windows and benches; furniture, chairs included; and any other surface likely to be contaminated or that will need decontaminating.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.