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					Originally Posted by  bob jenkins
					 
				 
				 
Situations When Line Judges Do Not Signal 
 
6.  Non-server is touching the floor outside the sideline or end line on contact of serve. 
			
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 Bob beat me to it, but this is specifically addressed as NOT the responsibility of the LJ.  (I think that's a recent change, btw, like within the last 5 years.  But I wouldn't swear to that.)