what does OBR rules mean?? thanks

"Official Baseball Rules," published by The Sporting News, is the rulebook that Major League Baseball rules are based on. It is also used by the NAPBL and many amateur leagues.

P-Sz

They ARE the professional rules, not just "the rules that they are based on" The book is copyrighted by the commissioner of baseball.

Warning - whimsy ahead...
 

OBR means...

<a href="http://www.neovision.cz/prods/obr/">Optical Braille Recognition</a>

<a href="http://www.regents.state.oh.us/">Ohio Board of Regents</a>

<a href="http://www.obr-befamatex.com.pl/">DEVELOPMENT CENTER FOR TEXTILE MACHINERY (OBR in Polish)</a>

<a href="http://www.state.il.us/obr/">Office of Banks and Real Estate</a>

<a href="http://www.onlinebankingreport.com/resources/">Online Banking Report</a>

<a href="http://online.sfsu.edu/~obr/">Office of Biomedical Research</a>

<a href="http://www.io.com/~wasson/reviews/about.html">One Billion Robots</a>

:D

Here is a link to the MLB rules online...

<a href="http://www.mlb.com/NASApp/mlb/mlb/baseball_basics/mlb_basics_foreward.jsp">Official Rules 2000 Edition</a>