The injection room's walls are solid and, where they do not run from real floor to real ceiling, are extended with sheetrock or wire mesh; where Level 1 and Level 2 barriers are in place and confirmed, a caged enclosure meeting Requirement 32 may serve, with every other 13-9 and 32-9 condition still applying.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.