Any testable backflow prevention device on the facility's water supply must be tested, and pass, once every 12 months; the test follows AS 2845.3 and is done by a licensed plumber holding accreditation for testing backflow devices. Failures must be fixed and the device retested until it passes, and the last three years of test results must be documented, kept and given to the Regulator on request. This sits under the Part B heading for dealings with GM micro-organisms, so it applies in addition to the other conditions when any dealing in the facility involves them.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.