Jersey change

[MJT]

Originally Posted by Forksref

Last night we had home team #21 rip his jersey to point where it no longer covered the shoulder pad on one side. So he changed to #33. I was working the chains and the opposing coach said to his assistant coach (not to me) that he should be informed of the number change. At the time I didn't recall any such action as being required, so I didn't respond.

Anyone aware of such a requirement to inform of a number change, and, if so, a rule reference?

No notification is necessary. A player will often change numbers if he is the center and they want him to be eligible on a swinging gate, or if he needs to switch from an ineligible number to an eligible, or vice versa, cuz of an injury.