I-68 program

I=92m going to visit US this summer (by sailing across - Lake Ontario).
I have been told that I will need I-68 program/form to get there
easier.
I read about that on US GOV website.
I=92m located in Toronto area.
Can somebody explain to me where I have to go to get the I-68 form.
I called all number listed in Buffalo as a ****t of entry, but nobody
knows what is I-68.
I called a bridge with no luck at all.
Does anybody can help me and get instruction where to go.
Or any other advises =96 in this matter.
Thank in advance
Mada