Modified Prior Approval Rating

Form of state rating law that requires prior approval of property and casualty insurance premiums by the state insurance department for certain changes. Here, a state generally allows new rates to go into effect immediately after filing with the insurance department. However, changes in classification of risks or other substantial changes require prior insurance department approval. There are four methods of rate approval. In addition to modified prior approval, they are PRIOR APPROVAL RATING, open competition, and file and use.