Vietnam signed a repatriation agreement with the U.S. in 2008. The agreement states that Vietnam will only consider issuing travel documents for people who came to the U.S on or after July 12, 1995, the date that diplomatic relations were restored between Vietnam and the U.S. Since then, Vietnam has issued travel documents for some (but not nearly all) “post-95” immigrants. Vietnam has been very reluctant to issue travel documents for “pre-95” immigrants.
As of October 2018, ICE is not arresting pre-95 people from Vietnam at check-ins. There are about 8,600 Vietnamese, Montagnard, and other ethnic minorities with removal orders in the U.S.