A Different Defendant Entirely
Every other page in this library is about identifying a company. This one is about what happens when the answer is the federal government.
The Postal Service operated 262,740 vehicles at the end of fiscal year 2025, one of the largest civilian fleets in the world, and its trucks work the same residential streets where people walk, cycle, and back out of driveways. When one of those vehicles injures you, Congress has already decided who answers for it: under 39 U.S.C. 409(c), the Federal Tort Claims Act applies to tort claims arising out of activities of the Postal Service.
That statute does something unusual with the driver. For a motor vehicle operated by a government employee within the scope of employment, the remedy against the United States is exclusive of any other civil action against the employee personally. You do not have a choice between suing the carrier who was driving and suing the government. The government has substituted itself.
For you, that substitution cuts both ways. The defendant can always pay a judgment, which is never guaranteed with an individual driver or a thin local company. In exchange, the claim follows a procedure written by the defendant's own sovereign, and the procedure forgives nothing.

