I have been tasked to review this document on behalf of the OPS Area Directorate. This document describes an EPP extension for conveying maintenance events to EPP clients. Overall, I find the document mostly ready, but I do have a few questions, and I found a few typos. === Section 3.3 What is the use case for having be equal to ? I would think you'd always want the end time to be in the future to be a relevant maintenance event. === Section 3.3 s/negotiated value is something other then the/negotiated value is something other than the/ === Section 3.3 If one of the intervention elements is true, how does one find out the details of the connection or implementation-related intervention? I imagine the URI would provide that, but I was expecting to see it stated in this document in the description of these elements. === Section 4.1.4 s/command and response is defined/command and response are defined/