31 CFR 501.605: U.S. persons in U.S. litigation, arbitration or binding ADR on behalf of or against blocked persons, or whose outcome may affect blocked property, must notify OFAC's Chief Counsel on commencement, send copies of pleadings and orders within 10 days of filing or issue, and report hearings where a dispositive order may issue; those initiating proceedings must tell the court of the bar on unlicensed attachment of blocked property.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.