Free Blocking Zone Federation Rules

[splitveer]

I am curious as to the free blocking zone. I am getting some different opinions on a Tight end chop blocking a Defensive End that is lined up on the outside shoulder of the Offensive Tackle. The tackle is not making any contact with the Defensive End. This is not a contact high/low situation. This is simply the TE chop blocking the DE.

1. Can this be legal in any form...for example...the TE is foot to foot with the Offensive Tackle?

2. Is this an illegal block no matter what?

3. Please explain your opinions in this with detail.

Thank you so much for your help on this.