I am the assigned Ops area reviewer for this draft. The Ops directorate reviews all IETF documents being processed by the IESG for the IETF Chair. Please treat these comments just like any other last call comments. This document basically redefines the XML format of IODEF messages in the JSON format. The document is written very clear. Only one minor comment: why it is STANDARD track document? I would think it is more like Informational document.