I've ordered about 10 Spyderco knives from the USA since the decision and have had CBSA inspection tape on three of them, but none have been turned away.
https://www.cbsa-asfc.gc.ca/publication ... 1-eng.html
This ruling changed Canadian law.
b. it includes knives that require some preliminary or simultaneous minimal manipulation of either a flipper or other non-edged parts of the blade.
I think A has always been banned, but B is new to me. That basically leaves no knives other than slipits.
(b) Centrifugal knife (folding knife, butterfly knife, balisong knife) – A centrifugal knife is one that has a blade that opens automatically by centrifugal force when the blade is released from the handle into the fully ejected and locked position with a simple and brisk outwardly flick of the wrist; and it includes knives that require some preliminary or simultaneous minimal manipulation of either a flipper or other non-edged parts of the blade.
Centrifugal force may be defined as a force, arising from the body's inertia, which appears to act on a body moving in a circular path and is directed away from the centre around which the body is moving. That is, centrifugal force is established when the blade of the knife may be opened with the flick of the wrist.
I think basically any knife other than a slipit can be determined by CBSA to open via centrifugal force because they can be flicked open with minimal manipulation.