From NCAI: Here is a memorandum from the Department of Homeland Security regarding the upcoming Western Hemisphere Travel Initiative (WHTI) implementation on June 1, 2009 and it’s effect on North American Indians.
To summarize the memorandum, U.S. Customs and Border Protection will not require those persons who fall under the Jay Treaty exceptions to present a WHTI compliant document on or after June 1, 2009 until such time as an alternate document is approved and issued.