Every potential registrant of a substance it has not pre-registered must ask the Agency whether a registration for the same substance already exists, giving its identity, the substance identity and which information requirements would need new vertebrate and other studies. If the substance was registered less than 12 years earlier the Agency gives the names and addresses of the previous registrants and the relevant summaries, and vertebrate studies must not be repeated.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.