A couple of days ago, I published an article to query how to deal with I-94 form which held in your hand without being surrendered to INS. A lot of friends say it doesn't matter. In fact, I send a formal letter to ask for USA Embassy,Canada, they give me a very positive answer that
WE HAVE TO MAIL I-94 AND OTHER SUPPORTING MATERIAL TO INS IN LONDON,KY USA OTHERWISE WE'LL BE RECORDERED IN NEW COMPUTER SYSTEM.
VERY IMPORTANT. theoretical, Forgeting to surrender I-94 is absolutely illegal. I'M NOT KIDDING
WE HAVE TO MAIL I-94 AND OTHER SUPPORTING MATERIAL TO INS IN LONDON,KY USA OTHERWISE WE'LL BE RECORDERED IN NEW COMPUTER SYSTEM.
VERY IMPORTANT. theoretical, Forgeting to surrender I-94 is absolutely illegal. I'M NOT KIDDING