RSA 154:7-b Expeditious Clearance of Roadways.

Subject to the authority and limitations granted in RSA 154:7, I(c) with respect to a propelled vehicle accident, natural disaster, or special event occurring in or immediately adjacent to a state highway, the fire officer in charge, or if the incident is not within the purview of the fire department, the police officer in charge and all public safety responders shall coordinate their efforts to maintain incident area safety and security, including protection of responders to the incident, protection of roadway users and others at the incident site, movement of road users safely past, around, or away from the incident, reduction of the likelihood of secondary crashes, and expeditious clearance of the roadway.
I. The fire chief, or in the fire chief's absence the engineer or fi