What are auto insurance coverage requirements?

It varies by state to state. It also depends on if your state laws are at-fualt or no fault. In Colorado we're a at-fault state, which means you only required to carry liability. These limits are 25/50/15. That means 25k per person and 50k for the total accident. That covers hospital bills, if they were to sue you(attorney fee's and court fees, etc), and lost wages and whatever else you might be held responsible for. 15k total property damage. Remember liability only covers damages to a 3rd party. (for example: the person you hit and you were At Fault). All other coverages are optional. Such as Medical Payment's, or also known as P.I.P. or personal injury protection. Physical damage coverage for the vehicle is also optional along with towing and rental car reimbursement.