What regulation covers army military balls?

Answer 1

There isn't one. There isn't a field manual, or a DA Pamphlet, or anything written that covers military balls. Military balls are one of those things that are handed down as ancient writ from person to person.

I worked on a lot of these, and here's how it basically goes. In every unit, you have an Officer Wives Club. The wife of every officer in the battalion is in it in some way, shape or form, and the battalion commander's wife is the leader. When they decide to throw a military ball, the colonel's wife takes command of the thing. She delegates the getting of the hall, the decorations, the meal, the band and everything else they'll need to do to the other officers' wives. The officers' wives know the troops in the unit who know how to do things like write invitations or make decorations and ask those troops to help.

By the time the ball has been presented the other women in the club will know how to do a ball. When their husbands move on to other units, they will take this knowledge with them.

Now...if you'd asked about dinings-in and dinings-out, this is something that is handed down from sergeant major to sergeant major, and from sergeants major to the lower-ranking sergeants and in that way keep the traditions alive.