Answer:
Get to a safe place, call 911 when needed, obtain medical attention, exchange information, document the scene if possible, and speak with an attorney before making important insurance decisions.
Immediately after a collision, protect yourself and others from further harm and contact emergency services when appropriate. Accept or seek medical evaluation, even if symptoms initially seem minor, because some injuries are not obvious at the scene.
If you can do so safely, exchange insurance and contact information, take photographs, identify witnesses, and obtain the police report number. Avoid admissions about fault and preserve all records. A New Hampshire car accident lawyer can explain the claims process and help protect important evidence.