N.H. Rev. Stat. Ann. § 417-A:6

There shall be no liability on the part of and no cause of action of any nature shall arise against the insurance commissioner, any insurer, the authorized representatives, agents and employees of either or any firm, person or corporation furnishing to the insurer information as to reasons for cancellation or refusal to write or renew for any statement made by any of them in complying with this chapter or for the providing of information pertaining thereto.