"Accidental Interference"

[bob jenkins]

My guess is that PU meant "incidental contact" but got tongue tied.

Still, you asked the correct question.

Originally Posted by justanotherblue

The only way I know of not having the FPSR enforced in Fed is, if the fielder is on the first base side of the bag and the runner performs a legal slide.

IF the (otherwise legal) contact is on top of / over the base, it's also legal.

In FED, the contact would be illegal if it was beyond the base; this type of contact would be legal in NCAA.