Runner's Lane Question

[jmkupka]

A couple related questions, please:

1. USA has always interpreted the lane as extending vertically on both sides, meaning that both feet can be entirely within the lines while upper body part(s) can still extend beyond, potentially causing interference. It's been discussed and concurred on this forum. Question: Does NCAA interpret this the same way?

2. Again NCAA, due to the absence of the double base, is the B/R allowed to run in fair territory, without fear of an INT call, if fielder sets up foul to take a throw from foul ground and BR still gets plunked?

3. Again NCAA, is running lane INT enforced TOP or TOT? Does R1 from 3B, crossing the plate right after the bunt and well before the INT, have to return? (This I can find myself, but I don't have my book)