Gives site builders the ability to disable zones (for all countries) in the "State/Province" dropdown on the checkout page. Zones in the billing and shipping pane can be disabled separately (to allow someone to buy a product from Hawaii address without shipping there for example).

Other methods I've seen to accomplish this are:

Compatibility

Ubercart UC Disable Zones
6.x-2.x 6.x-1.x
7.x-3.x 7.x-3.x

Project information

Releases