N.C. Const. art. V, § 13

(1) Notwithstanding any other provision of this Constitution, the General Assembly may enact general laws to grant to the State, counties, municipalities, and other State and local governmental entities all powers useful in connection with the development of new and existing seaports and airports, and to authorize such public bodies:

(a) to acquire, construct, own, own jointly with public and private parties, lease as lessee, mortgage, sell, lease as lessor, or otherwise dispose of lands and facilities and improvements, including undivided interest therein;

(b) to finance and refinance for public and private parties seaport and airport facilities and improvements which relate to, develop or further waterborne or airborne commerce and cargo and passenger traffic, including commercial, industrial, manufacturing, processing, mining, transportation, distribution, storage, marine, aviation and environmental facilities and improvements; and

(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.