Note: this is an update on the process of determining and obtaining an I-194 waiver of inadmissibility. How can a Canadian citizen apply for a waiver to enter the United States if they have been or are likely to be denied admission either because of their criminal history or because they overstayed a previous visit? There are many reasons a person may be ineligible to enter the U.S. The legal descriptions are lengthy and complex, so to help you understand them, I am providing a general description of the most common ones. This list should not be taken as a complete list of reasons to be excluded from entry. In general, you might be denied entry if you have a communicable disease, if you have a criminal record for crimes of moral turpitude (age 18 or older) , for possession of or trafficking in a controlled substance, if you have any involvement with terrorism or terrorist organizations (no waivers can be approved for this category) , if you have trafficked in persons, been invol...