N.C. Gen. Stat. § 159C-13
Notwithstanding any other provisions of law to the contrary, all money received pursuant to the authority of this Chapter, whether as proceeds from the sale of bonds or as revenues, shall be deemed to be trust funds to be held and applied solely as provided in this Chapter. The security document may provide that any of such moneys may be temporarily invested and reinvested pending the disbursement thereof in such securities and other investments as shall be provided in such security document, and shall provide that any officer with whom, or any bank or trust company with which, such moneys shall be deposited shall act as trustee of such moneys and shall hold and apply the same for the purpose hereof, subject to such regulations as this Chapter and such security document may provide.
N.C. Gen. Stat. § 159C-13