What catches many people off guard is that this is not a rule saying the government can never be sued. It is a legal protection that generally shields a state and its agencies from being taken to court without their consent. The idea comes from the principle that a sovereign government cannot be sued unless it has agreed to that lawsuit or a law clearly allows it.

In practice, that protection can be limited or waived. For injury cases, the key question is often whether a state has opened the door to certain claims and under what conditions. In Oregon, that usually means looking at the Oregon Tort Claims Act. That law allows some claims against public bodies and employees, but only within specific rules, deadlines, and damage limits. A person hurt in a crash involving a state vehicle, a dangerous road condition, or a public worksite may have a path forward, but it is not the same as suing a private party.

For an injury claim, sovereign immunity can affect who may be sued, what damages are available, and how fast notice must be given. It can also interact with comparative fault rules: under Oregon's modified comparative fault system, recovery is barred if the injured person is 51% or more at fault. When the defendant is a public entity, missing a notice requirement can end the claim before fault is even argued.