Under what conditions should you move vehicles from the roadway after a traffic crash?

• Only if the vehicles are severely damaged
• Only if there is a risk of traffic congestion
• Only if the vehicles are capable of being driven normally and safely
  Explanation:

  "Drivers should only do this if the vehicles are capable of being driven normally and successfully, and driving the vehicles will not present any further hazard or harm to the vehicles themselves, to the driver, to persons nearby, or to the roadway."
• Only if there is a police officer directing them to do so