A car accident typically involves only one defendant—the other driver who hit you or forced you from the road. You can identify this person pretty easily at the scene of the accident, and you should swap insurance and personal information.
But a truck accident is different. There could be multiple people responsible for the collision. And you might have to perform a more extensive investigation.
For example, the trucking company could be responsible, as mentioned above. Their hiring practices or disciplinary procedures could be inadequate, which makes them responsible for the wreck. They owe the public a duty of care, and poor employment practices violate that duty.
Another example is the company that loaded the goods into the back of a tractor-trailer. This is often a different company than the company that owns the truck. If they did a poor job—making the load imbalanced, for example—then they bear some of the responsibility for the accident.
Another entity could be the mechanic who worked on the truck. He could have failed to identify a problem or done poor work. If a tire falls off the truck, for example, it could be because a mechanic did not do his job properly when mounting it.
In other accidents, the truck manufacturer could be responsible, especially if the truck has a defect. Some trucks are designed poorly, or there is some flaw in the way it is manufactured or put together. Under Georgia law, a manufacturer is liable for injuries when their unreasonably dangerous products injure someone.
These are only some of the more common defendants. Others could be the owner or contractor at a construction job site, if a vehicle struck you when pulling in or out. If the truck driver was intoxicated, then the establishment that sold him alcohol could be to blame, also.