N.H. Rev. Stat. Ann. § 383-B:9-906

No bank holding company shall directly or indirectly acquire ownership or control of any voting stock of a depository bank, national bank, or federal savings bank, and no depository bank shall combine with another depository bank or foreign bank, if upon making the acquisition the bank holding company would have more than 12 affiliates in this state, or the dollar volume of the total deposits in this state of the bank holding company and all its affiliates or the bank resulting from the combination would exceed 30 percent of the dollar volume of total deposits in this state of all banks in this state as determined by the commissioner on the basis of the most recent annual deposit reports of the Federal Deposit Insurance Corporation available at the time of acquisition.