Immediately assess injuries and call 911 if there are any. This is crucial for both health reasons and legal obligations.
Legally, you must report any accident resulting in injury, death, or property damage over $1,000 to the police as soon as possible. If police do not investigate, a written report must go to the Montana Department of Justice within 10 days. Not doing so is a misdemeanor, with fines ranging from $200 to $500 and possible jail time for repeated offenses within a year.