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					Originally Posted by Tom.OH  I guess by local associations but some have over 100 members, would you want 3 digits on your back?... | 
	
 It's good enough for this league.
https://operations.nfl.com/the-offic...nfl-officials/
To answer the OP.  Like you suggested, I've always assumed the numbers were there for league officials and evaluators to correctly identify the officials in the video they were reviewing.  I suppose with more and more video being used and shared by everyone, one could make the case that assigners and evaluators might find this useful at lower levels.  I don't expect it to become the norm any time soon though.  Too many officials work for multiple associations and assigners.  I could only imagine if you had to wear a different number depending on the league you were working that night.