Understanding Plate & Catch Lines in Baseball Umpires

Question
I have heard high school plate umps talking about going out to the hit line and the catch line. What are these lines, and when do umps go to them?

Thanks

Kerry

Answer
Hi Kerry,

I must confess I was not familiar with these terms myself.  It just goes to show their is always something new to learn.  Anyway, I tracked down a website that lists these terms and few others you may have an interest in.  Here, is a link to the site:

http://www.arlingtonlittleleague.org/umpire/PlateUmpire.html

Best,
Jack Elliott
http://www.baseballtrainingtechniques.com