Please note that this website provides only a summary of auto insurance, written to illustrate in general terms how auto insurance works. Your insurance policy is the legal contract that contains the terms and limitations of your coverage. You should carefully review the contents of your policy. All products and coverages are subject to availability and limitations. Whether an accident or other loss is covered is subject to the terms and conditions of your insurance policy.
Often a commercial insured's liability insurance program consists of several layers. The first layer of insurance generally consists of primary insurance, which provides first dollar indemnity for judgments and settlements up to the limits of liability of the primary policy. Generally, primary insurance is subject to a deductible and obligates the insured to defend the insured against lawsuits, which is normally accomplished by assigning counsel to defend the insured. In many instances, a commercial insured may elect to self-insure. Above the primary insurance or self-insured retention, the insured may have one or more layers of excess insurance to provide coverage additional limits of indemnity protection. There are a variety of types of excess insurance, including "stand-alone" excess policies (policies that contain their own terms, conditions, and exclusions), "follow form" excess insurance (policies that follow the terms of the underlying policy except as specifically provided), and "umbrella" insurance policies (excess insurance that in some circumstances could provide coverage that is broader than the underlying insurance).[36]
Retrospectively rated insurance is a method of establishing a premium on large commercial accounts. The final premium is based on the insured's actual loss experience during the policy term, sometimes subject to a minimum and maximum premium, with the final premium determined by a formula. Under this plan, the current year's premium is based partially (or wholly) on the current year's losses, although the premium adjustments may take months or years beyond the current year's expiration date. The rating formula is guaranteed in the insurance contract. Formula: retrospective premium = converted loss + basic premium × tax multiplier. Numerous variations of this formula have been developed and are in use.

^ Anzovin, Steven, Famous First Facts 2000, item # 2422, H. W. Wilson Company, ISBN 0-8242-0958-3 p. 121 The first life insurance company known of record was founded in 1706 by the Bishop of Oxford and the financier Thomas Allen in London, England. The company, called the Amicable Society for a Perpetual Assurance Office, collected annual premiums from policyholders and paid the nominees of deceased members from a common fund.
Admitted insurance companies are those in the United States that have been admitted or licensed by the state licensing agency. The insurance they sell is called admitted insurance. Non-admitted companies have not been approved by the state licensing agency, but are allowed to sell insurance under special circumstances when they meet an insurance need that admitted companies cannot or will not meet.[43]
Products underwritten by Nationwide Mutual Insurance Company and Affiliated Companies. Not all Nationwide affiliated companies are mutual companies, and not all Nationwide members are insured by a mutual company. Subject to underwriting guidelines, review and approval. Products and discounts not available to all persons in all states. Nationwide Investment Services Corporation, member FINRA. Home Office: One Nationwide Plaza, Columbus, OH. Nationwide, the Nationwide N and Eagle and other marks displayed on this page are service marks of Nationwide Mutual Insurance Company, unless otherwise disclosed. ©2019. Nationwide Mutual Insurance Company.

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