Baseball Rules
Contrary to popular belief, there is not a single set of rules for the game of baseball. Major League baseball uses the Offical Baseball Rules (OBR) for their games, as do a great many other leagues, from Little League on up. However, almost all of the leagues that use OBR as a basis for their games, including Major League baseball, have "supplemental" rules that regulate play in their leagues. In addition, there are rules for the game of baseball that are specific to high schools and various college levels. It is imperative that the umpire calling a baseball game know which set of rules, and any "supplemental" rules, are being used for that game.
National Federation of High Schools (NFHS)
Rule Changes 2006 2007 2008 2009 2010
Rule Book (not available on-line)
Interpretations 2005 2006 2007 2008 TASO Interpreter 2005 & 2006
National Collegiate Athletic Association (NCAA)
Rule Changes 2006 2007 2008 2009 2010
Rule Book
Interpretations 2007 2008
National Association of Intercollegiate Athletics (NAIA)
Rule Changes 2006 2007 2008 2009 2010
Rule Book (NAIA uses the OBR as the basis or their rules, with modifications as shown in the Rules Changes above)
Official Baseball Rules (OBR)
Rule Changes 2006 2007 2008
Rule Book
Texas Association of Private and Parochial Schools (TAPPS) (basically NFHS)
Southwest Preparatory Conference (SPC)
(See NFHS)
Men's Senior Baseball League (MSBL)
MSBL/MABL Rules
Rule Book (MSBL/MABL uses the OBR as the bais of their rules, with modifications as shown above)
Summer Ball Rules
MSBL/MABL Rules (MSBL/MABL uses the OBR as the bais of their rules, with modifications as shown above)
Wings
BCS, Perfect Game, World Wood Bat (Prater)
Balcones (Balcones plays under PONY rules, which is basically the OBR with very few modifications)