In article ,
"Viperdoc" wrote:

Great info: I was looking for insider tips for Trudeau specifically. I
understand that you're supposed to taxi directly to customs and not even
exit the plane until the customs agent comes up- is this true, or perhaps
that was regarding coming back into the states?
I will be going IFR, and probably clearing customs at Buffalo or Rochester.

In the US, you do not get out of your airplane until instructed to do so.
In Canada, if Customs agents are going to check you out, they will be
waiting for you on the ramp.
If they are not waiting for you, go into the FBO and ask for the phone
to call Customs.