Each professional bondsman acting as surety on bail bonds in this State shall maintain a deposit of securities with and satisfactory to the Commissioner of a fair market value of at least one-twelfth the amount of all bonds or undertakings written in this State on which he is absolutely or conditionally liable as of the first day of the current month. The amount of this deposit must be reconciled with the bondsman's liabilities as of the first day of the month on or before the fifteenth day of said month and the value of said deposit shall in no event be less than fifteen thousand dollars ($15,000).
N.C. Gen. Stat. § 58-71-145