OBR

[bob jenkins]

Originally posted by Mark T. DeNucci, Sr.
Is the OBR the official rules of MLB (as well as the minor leagues)? Or does the MLB publish its own set of rules which are different than the OBR?

The published rules for MLB is OBR -- in the front of the book, they say something like "these rules may be borrwed for other organizations."

But, the ML umpires also get a large book of interpretations and instructions that is not avaialble to the public. These aren't (generally) "official" rules, but they are de facto rules.