All of the Modules can have a Zone Definition ...
You build the one(s) to meet your needs ...
Example: you could build one for:
I take PayPal
and only add the US and Canada to it ...
Or,
I take Check/Money Order
and only add US 48 plus DC to it ...
Or,
I Ship USPS US, CA and UK
and only add US all, Canida All and UK all
You can build whatever you need ...
What you call the zone is up to you ...



