MUST vs shall in the profile definition #25
Description
IETF RFC 2119 allows either MUST, "REQUIRED" or "SHALL".
ISO requires "shall"
"Do not use “must” as an alternative for “shall”. This avoids confusion between the requirements of a document and external constraints (see 7.6)."
Even though this profile is not (yet) a formal ISO document, do please switch from "MUST" to "SHALL" (ISO doesn't require all caps, but it probably won't mind).