The liability numbers represent the maximum limit of the coverage that the insurance company will provide. The liability limits are usually represented in a set of three like 30/40/50. In this example, 30 represents $30,000; the limit of medical bills coverage per person of another driver. 40 represents $40,000 which means the maximum coverage for all the persons injured in the accident. And 50 represents $50,000 to cover all the expenses of the property damage of the other driver.