Phoenix Personal Injury Lawyer, Chris Zachar of Zachar Law Firm answers your personal injury questions. Visit to live chat with our support staff 24/7, or call us directly at 602.494.4800 to schedule a FREE no obligation consultation. Get answers to your questions: Arizona is a comparative negligence state. What that means is that when an accident occurs, we have to look at the circumstances of the accident and determine all persons who may be responsible. Once you determine who may be responsible, you divide up their percentage of responsibility against the whole and once you've done that, the law defines that each one is responsible for their "percentage" of responsibility in the accident.