N.H. Rev. Stat. § 21-L:12-e

Notwithstanding any provision of law to the contrary, the commissioner of the department of transportation and designated department of transportation safety representatives are authorized to access or be provided with crash data held by the department of safety, local law enforcement, or other government agencies or entities. The purpose of this authorization is to enable the department of transportation and its agents to access information for the sole purpose of timely crash analysis to improve safety and to advance safety related initiatives. For the stated purpose, the department of transportation is authorized to share the redacted data with governmental transportation planning agencies and their contracted agents for transportation planning purposes, provided the information shall not be further disseminated or used for any other purpose. In the event that the department obtains personally identifiable information, the department shall redact such information and not include such information in its analysis nor disclose the personally identifiable information. The department is authorized to publish the following analytical information for public information purposes and to help prioritize transportation projects: the number of accidents, each accident location, type of accident, and severity of impact at each accident location. Any information received under this section by the department of transportation shall not be subject to RSA 91-A.