North carolina constitution
Article V
Section 13

(c) to secure any such financing or refinancing by all or any portion of their revenues, income or assets or other available monies associated with any of their seaport or airport facilities and with the facilities and improvements to be financed or refinanced, and by foreclosable liens on all or any part of their properties associated with any of their seaport or airport facilities and with the facilities and improvements to be financed or refinanced, but in no event to create a debt secured by a pledge of the faith and credit of the State or any other public body in the State.