Cross-border transfer is permitted to states that ensure equal protection of subjects' rights; transfers to other states need the subject's consent, necessity to protect the constitutional order, public order, rights and freedoms, health or morals, or an international treaty. Transfers may be prohibited or restricted to protect the constitutional order, citizens' rights, defence and state security.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.