What should you do first if involved in a collision while driving a commercial vehicle?

Answer: B — Assess injuries and alert law enforcement

If you are involved in a collision while driving a commercial vehicle, the first step is to assess injuries and alert law enforcement. This is crucial because ensuring the safety and well-being of all parties involved is the top priority. By checking for injuries, you can determine if medical assistance is needed and provide that information to emergency responders when you alert law enforcement. Promptly notifying the authorities is important for legal and procedural reasons; they will document the incident and offer assistance, which helps in managing any traffic congestion and ensuring that proper protocols are followed. Taking these actions first can help prevent further accidents and can provide a clearer picture of what occurred for insurance and legal purposes later. It is essential to prioritize safety and legal compliance rather than focusing on logistics like calling a tow truck or exchanging information without making sure that everyone is safe or injured persons receive help.