All states impose their own statute of limitations, or the time limit for which you can file a claim after you have been injured by someone else’s negligence. Not only is the statute different in every state, but it also is different for claims against the government. It is very important that you file your claim within the statute of limitations for your case type (personal injury); if you do not, then you will most likely be unable to file a claim for damages and recover any compensation in the future.
In Arizona, you only have two years from the date that your injury occurred or was discovered to file a personal injury claim, per Arizona State Legislature Chapter 5, Section 12-542. If you want to file a claim against a public entity, then the statute of limitations is reduced to one year. The only exceptions to the statute of limitations are in the event that your injury was discovered long after the date of the injury actually occurred. For example, if you were exposed to a toxic chemical in 2012, but did not discover that that exposure caused you harm until 2014, the clock will not start ticking until the date of discovery.
Your attorney can help you to understand the statute of limitations for your case, and how to file your claim within the time frame stipulated by the law. Because two years is not a lot of time, it is important that you reach out to an attorney as soon as possible.