I have reviewed this document as part of the security directorate's  ongoing effort to review all IETF documents being processed by the  IESG.  These comments were written primarily for the benefit of the  security area directors.  Document editors and WG chairs should treat  these comments just like any other last call comments. This document updates RFC6487 to account for the handling of CRL ordering rules when used in the Resource Public Key Infrastructure. The document reads well and I have found no issues to the requested updates.