.... except the "professional" umps (still usually volunteers, but very highly ISAF certified, and often paid for travel) will include a rule number reference with every phrase they speak.
If they do, then they're not following the "efficient/effective" communication protocols in the
International Umpires' and Match Racing Manual (pages D-9 to D-11). They may do that if there are observers aboard, but it's to benefit the observers, not as a regular practice.
