New Hampshire Code of Administrative Rules
Ins - Commissioner, Insurance Department
Chapter Ins 1400 - AUTOMOBILE INSURANCE
Part Ins 1405 - RECORD RETENTION PROCEDURES IN THE VOLUNTARY MARKET AND THE NEW HAMPSHIRE AUTOMOBILE REINSURANCE FACILITY
Section Ins 1405.01 - Record Retention Procedures

(a) Insurers shall establish a system or procedure that shows the re-tiering of an automobile policy between rating tiers. A cancellation or nonrenewal with concurrent writing of another policy shall be deemed re-tiering for purposes of this rule. Each insurer shall track the re-tiering of an automobile policy for a minimum of the current policy year plus 5 years from the effective date of the current in force policy.

(b) Insurers shall maintain for a period of the current policy year plus 5 years a record retrieval system of all company refusals to write insurance coverage and all company-initiated cancellations and non-renewals of insurance policies and the factual reasons for the refusal to write, cancellation, or non-renewal.

(c) Companies writing insurance in this state shall maintain all underwriting and rating documentation from which any premium charge is developed. Such documentation shall in all cases include the underlying factual basis which supports the premium charge developed, not merely the underwriting or rating conclusion drawn from such facts, and be retained in a manner so that the commissioner can readily ascertain during an examination the insurer's compliance with its filed and approved rates, rating plans, underwriting models, and state insurance laws and rules. These records shall be retained for the current year plus 5 years.