On 5/29/19 5:37 PM, Stefan Santesson via Datatracker wrote:
A common aspect of standards documents is that they only are relevant to those who declare compliance to the standard. This document is different as it relies on that all parties (CA:s) are aware of this standard and performs the stipulated checks.
In practice this has been stipulated for public CAs by the CA/Browser Forum Baseline Requirements since September 2017: https://cabforum.org/2017/03/08/ballot-187-make-caa-checking-mandatory/.
In other words, the CP for this particular community of trust incorporates RFC 6844, making it mandatory. The intent is that once RFC6844bis is standardized, CA/Browser Forum will have a followup ballot incorporating it.
