Suing the Government for an Injury in Arizona

How Do You Sue the Government for an Injury in Arizona?

To bring an injury claim against an Arizona city, county, the state, or a public employee, you must serve a written notice of claim within 180 days of the injury.

That deadline comes from A.R.S. § 12-821.01, and it is unforgiving. Miss the 180 days and the claim is barred, no matter how strong it is.

A separate deadline applies on top of it: you have only one year to file the lawsuit itself, under A.R.S. § 12-821, half the two years an ordinary injury claim gets.

These short, strict deadlines are the reason good claims against the government die before they ever reach a courtroom.

If a government vehicle, a public hospital, a dangerous public road, or a city employee caused your injury, the clock is already running.

The single most important step is to get the notice of claim right and on time, which means involving a lawyer early rather than after the window has closed.

The 180-Day Notice of Claim Deadline

Arizona treats claims against the government differently from claims against a private person or business. Before you can sue, you have to give the government formal notice and a chance to settle.

A.R.S. § 12-821.01 requires anyone with a claim against a public entity or public employee to file a notice of claim within 180 days after the cause of action accrues.^[1] A claim that is not filed within that window "is barred and no action may be maintained." There is no good-cause extension for simply not knowing about the rule.

One hundred eighty days sounds like a long time. It is not. Between medical treatment, recovery, and the assumption that there are two years to act, families routinely let the window close without realizing a shorter clock was running the whole time. By the time many people first call a lawyer about a crash with a city bus or an injury at a county facility, weeks or months of that window are already gone.

By the time many people call us about a crash with a city bus or a county truck, a chunk of the 180 days is already gone. You have to move fast when suing the government or a municipality. With government accident claims, time is not on your side.

What the Notice of Claim Must Contain

Filing on time is only half of it. A notice that misses the required content is treated as no notice at all, and the claim is barred just the same. A.R.S. § 12-821.01 requires three things.

The Facts Supporting Liability

The notice must state facts sufficient to let the government understand the basis on which it is being held responsible. A vague gesture at "an accident" does not satisfy this. The notice has to explain what the entity or employee did, or failed to do, that caused the harm.

A Specific Settlement Amount

This is the requirement that trips people up most. The notice must state a specific amount for which the claim can be settled, a real number. A demand that leaves the figure open, or hedges with "to be determined," fails the statute. Courts have thrown out claims over exactly this.

The Facts Supporting That Amount

The notice must also explain the facts behind the settlement figure, tying the number to the injury, the treatment, and the losses. The amount cannot be a figure pulled from the air; it has to be supported.

Each of these is a place a self-prepared notice goes wrong, and a defective notice is often fatal. This is precisely the part of an Arizona government claim that rewards getting a lawyer involved before anything is sent.

The One-Year Lawsuit Deadline

The notice of claim is not the lawsuit. It is the prerequisite. Even after a timely, complete notice, A.R.S. § 12-821 gives you only one year from when the claim accrued to file the actual lawsuit.^[2]

That one-year clock is half the two-year deadline that applies to an ordinary Arizona injury claim. A claimant who serves the 180-day notice, waits for a response, and assumes the usual two years to sue can run out of time without realizing it. The two deadlines run on their own tracks, and both have to be met.

For how the standard injury deadline works outside the government context, see our overview of the Arizona statute of limitations.

Who Counts as the Government in Arizona

The notice-of-claim rules reach far more than just "the state." If the entity or person at fault is public, the 180-day notice and one-year deadline likely apply. Common Arizona examples:

• Cities and counties. A crash with a city bus or a county truck, a fall at a public building, an injury caused by a municipal employee.
• The state and ADOT. A dangerous highway condition, a defective road design, or a state vehicle on the freeway.
• Public schools and universities. Injuries on public campuses, school bus crashes, and claims against public school employees.
• Public hospitals and their staff. Medical negligence at a county or district hospital, which pairs the notice-of-claim rules with a medical malpractice claim.
• Transit and other public authorities. Public transportation, housing, and other government bodies and the employees acting for them.

Whether a defendant is public is not always obvious. A private contractor doing public work, or a hospital with a public charter, can change which rules apply. Identifying that early, before the 180 days run, is part of why these cases need fast attention.

Government Claim Deadlines vs. an Ordinary Injury Claim

A claim against a public entity runs on a shorter, stricter track than an ordinary injury claim. The differences are what catch people who assume they have the usual two years:

Step	Claim Against the Government	Ordinary Injury Claim
Notice of claim	Required within 180 days (A.R.S. § 12-821.01)	Not required
Deadline to file the lawsuit	1 year (A.R.S. § 12-821)	2 years (A.R.S. § 12-542)
Specific dollar demand	Required in the notice	Not required
Who it applies to	Cities, counties, the state, schools, public hospitals, employees	Private people and businesses

Both government deadlines run on their own tracks, and both have to be met. Serving the notice on time does not extend the one-year deadline to file suit.