I have reviewed this document as part of the Operational directorate's ongoing effort to review all IETF documents being processed by the IESG. These comments were written primarily for the benefit of the operational area directors. Document editors and WG chairs should treat these comments just like any other last call comments. Summary: Ready with some questions Editorial Nits: Terminology; there are several terms in the draft which are used, and in the Terminology section, the authors refer to 3 different drafts. However though documents use this terminology in a standard format (ex 'Authorization Grant'), but this document fails to follow this format. Editorially, I would think with multiple documents as sources, the terminologies should be attributed to specific documents. This may be my personal opinion. Section 2: The draft is referencing work done on a draft that has not been published, I-D.ietf-oauth-assertions but is being the basis for this draft. I would think this document should wait until that draft has been published, as it could change before publication. I got hung up on that issue, and while I read the rest of the draft and it does appear to be ready for publication with some editorial bits, I felt I gave some of the later sections less vigorous approach based on my previous blocker. tim