I am the assigned Gen-ART reviewer for this draft. The General Area Review Team (Gen-ART) reviews all IETF documents being processed by the IESG for the IETF Chair. Please treat these comments just like any other last call comments. For more information, please see the FAQ at . Document: draft-billon-expires-08 Reviewer: Robert Sparks Review Date: 2022-12-16 IETF LC End Date: 2022-12-27 IESG Telechat date: Not scheduled for a telechat Summary: Ready for publication as a proposed standard RFC The last call discussion of this document is surprisingly voluminous, but my individual opinion is that no further change is needed. To me the document is clear and at least one implementation exists. It's interesting to note that as of -08 there are only two non-boilerplate sentences using BCP 14 keywords: * Message creators **MUST NOT** include more than one Expires header field in the message they send. * If there is more than one Expires header field then message readers **SHOULD** act as if no Expires header field is present. (unless the software I have that extracts those has a bug).