Originally Posted by
TSORon
Several reasons actually. To insure that it is indeed a valid document (not fraudulent), and that it has not been tampered with or altered in an attempt to misrepresent who the actual owner of the document is. I hope that helps.
OK, thanks !
I am asking about written guidelines, one way or the other.
Maybe it is just not addressed in writing anywhere.
To save time, I try to remember to just use DL.