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					Originally Posted by  Robert Goodman
					 
				 
				Which makes one wonder why they increased it from 10 to 15 to begin with.  AFAICT it was intended as a simplifying move -- to have only 5 & 15 yard penalties -- and that's the way it stayed for decades in all American codes.  NFL broke that pattern.  Canadian football meanwhile stuck with a 10 yard penalty for illegal use of hands. 
			
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 The NFHS has made it fairly easy on us in that there are only a few 10 yard penalties -- and only 3 we'll see on a regular basis -- holding, IBB, and IUH.  
Everything else is either 5 or 15 and it's easy to classify those.