I was looking through the consulate site and found this. Hope it can help some Canadians with aboriginal ancestry who have a USC fiance or spouse.
http://vancouver.usconsulate.gov/content/c...cument=applying
First Nations
Aboriginal Canadians who have at least 50% aboriginal blood are eligible to apply for expeditious legal permanent residence at a U.S. port of entry. To apply, you will need to provide the following:
* Your status card
* Your birth certificate
* Two photos less than 30 days old>
* A valid reason for moving to the United States
* Your new U.S. address
* A letter stating your ancestry which includes your parents' percentage of aboriginal blood, your tribal group, and birth dates of yourself and your parents. The letter can be written by your Band Administrator or by a well recognized organization. United Native Nations provides this service as long as you can provide all the necessary information.
Customs and Border Protection (CBP) at the port of entry will issue you Form I-181, which you take to the nearest Social Security Administration office, in the U.S., to apply for your Social Security Number. It is strongly recommended that you apply for your Green Card (I-551) too, because many Aboriginal Canadians, without the card, have experienced problems with their employers. However, they are not required by law to have a Green Card.
For further information, you may contact Customs and Border Protection (CBP), either at the Vancouver Airport at (604) 278-3360 or at the Peace Arch Border Crossing at (360) 332-8512.
