SubSection 2, From Section 1-16 of the 2012-2014 Official Rules of the BCA Pool League: (the change is in bold and italicized)
You may only call one ball on a shot. If you call more than one ball, or if you use any conditional phrase such as “just in case” concerning more than one ball, your inning ends after the shot regardless of whether you pocket any ball. Any ball pocketed on such a shot is an illegally pocketed ball. Your opponent accepts the table in position.What?
So I can no longer say, "just in case, I'm calling the 5 ball into the 6 ball" because I really am not sure if I can make it or not.
Dang! That's such a common thing for us unsure pool players to say, lol.
Also, how uncomfortable is it going to be if someone says that and I have to call them on it? Eeeek. They are going to look at me like I'm crazy.
Even now, still not every knows that even obvious combos are suppose to be called. Even though it's in the rule book, it's a very tough rule to call someone on.
However, the new change above I think will be just as tough to call someone on; if I can do it at all.
I hope I remember this new rule!