There are a lot of reasons why Canadian citizens may find themselves in need of a US waiver after being denied entry into the United States. I've updated the enclosed decision chart, a reference that allows individuals at-a-glance to determine if they are inadmissible and in need of a US entry waiver. When can I not get a US Waiver? It's important to note – in some situations – that inadmissibility can never be waived. These include tax evasion, or marijuana convictions of more than 30 grams (or drug convictions other than marijuana) where a waiver of inadmissibility will not be granted. Security violations are another example where waivers cannot be granted, except in extreme circumstances involving reasons of US foreign policy. I've deliberately omitted from the chart, voluntary membership in a totalitarian party, which typically doesn't make one inadmissible. This updated chart will be permanently posted on a separate page and linked through the referenc...