Broad excess protection for liability over the level of primary coverage or self insurance. Umbrella policies are written for both business and personal liability. For example, a personal umbrella policy might add $1 million in liability coverage for an insured's negligent use of a car, boat, and all other property, over and above regular coverage. For a business, its applications would be even broader, including workers compensation, general liability, and all other coverage. Policyholders must have a certain minimum level of primary insurance before they can buy this supplemental coverage. For a personal policy the minimum might be $100,000 in homeowners liability insurance and $500,000 per accident for bodily injury in an auto policy.