The 2007 Jeep Liberty / Cherokee might be less likely to meet U.S. specifications. If this vehicle was not built to meet U.S. specifications it must be imported as gray-market vehicle, which might require major emission upgrades. This can be extremely expensive and time consuming.
If you are considering importing a foreign vehicle, you should review what the Department of Homeland Security, Customs and Border Protection (CBP) has to say on this subject, as CBP controls what vehicles may be brought into the United States. Your intended vehicle must clear customs before it can be registered in any state. The costs for a laboratory to modify and certify the emissions and safety equipment on a gray-market vehicle are considerable. You may also wish to contact the California Air Resources Board for its brochure on gray-market vehicles. The ARB number to call is (800)242-4450.