Intentional or not?
 

I was looking at the differences in runner interference between ASA and FED. I looked at the spreadsheet on Amateur Softball Association of America (ASA) and it says that interference with a thrown ball does not have to be intentional. However the FED rule book says....

The runner interferes:

d. intentionally with a fielder or thrown ball.

Now I interpret the "intentionally" to go with both phrases so it would read as "intentionally with a fielder or intentionally with a thrown ball". Is that not correct? Is it normal writing practice to apply a modifier to two phrases joined by an "or"?

With a little bit of Googling....I agree. The modifier is applied to BOTH nouns.

Am I understanding this right? A runner in ASA can be out if accidentally interferring with a thrown ball?

Intent was removed
 

I believe it was two years ago that intent was removed. All we need to judge is did the runner interfere. When the rule was changed there was some discussion in my association about this change. Basically the consensus was if the runner is doing what they are supposed to be doing (i.e. legally running the bases) we aren't going to penalize them if they get hit with the ball.