Business liability contracts commonly written include the following: liability of a building owner, landlord, or tenant; liability of an employer for acts of negligence involving employees; liability of contractors or manufacturers; liability to members of the public resulting from faulty products or services; liability as a result of contractual agreements under which liability of others is assumed; and comprehensive liability. The latter contract is designed to be broad enough to encompass almost any type of business liability, including automobiles. There has been increasing use of coverage for liability stemming from defective products, because some court judgments have awarded huge compensations.

Business liability contracts may be written to cover loss even if the act that produced the claim was not accidental. The only requirement is that the result of the act be accidental or unintended. Thus if a contractor is making an excavation that produces large amounts of dust and this dust causes loss to neighbouring property, the contractor’s liability policy would respond to claims for loss, even though the act that produced the dust was a deliberate act.

Known as malpractice, or errors-and-omissions, insurance, professional liability contracts are distinguished from general business liability policies because of the specialized nature of the liability. Professional persons requiring liability contracts include physicians and surgeons, lawyers, accountants, engineers, and insurance agents. Important differences between professional and other liability contracts are the following:

1. No distinction is made between bodily injury or property damage liability, and there is no limit on the number of claims per accident but rather a limit of liability per claim. This recognizes the fact that one negligent act on the part of a professional person may involve more than one party, each of whom could bring a legal action against the professional person. Thus a doctor might administer the wrong medicine to a number of patients, each of whom could bring a legal action.

2. Claims against a professional person may have an adverse effect upon his or her reputation. The policy therefore permits the insured to carry any action to court, since an out-of-court settlement might conceivably imply guilt in the eyes of the professional’s public or clientele.

3. In professional liability insurance there is an exclusion for any agreement guaranteeing the result of any treatment. Suits stemming from clients’ dissatisfaction with the service performed are thus not covered.

The most common form of personal liability insurance is issued as part of the homeowner’s liability insurance policy. It is an all-risk agreement and contains relatively few exclusions. The policy covers any act of negligence of the insured or residents of the home that results in legal liability. It may also include medical payments insurance covering accidental injury to guests and other nonresidents without regard to the question of negligence.

Nearly half of all property-liability insurance written in the United States is in the area of automobile insurance. Set up as a comprehensive contract in most parts of the world, automobile insurance covers liability, collision loss of the vehicle, all other types of loss (called comprehensive loss), and medical expenses incurred by the driver, passengers, and other persons. Coverage usually applies to anyone driving the car with permission of the owner. Thus, drivers are insured whether driving their own or someone else’s car.

Automobile liability coverage is mandated by law in many countries up to specified monetary limits. The policy states what happens if the driver is covered by other automobile policies that may cover the loss. It also covers the liability of persons, such as parents, who have legal responsibility for actions of the driver. Coverage includes legal defense costs, usually in addition to the policy liability limits. Many policies exclude coverage for the time the automobile is driven in a foreign country.

Theft generally covers all acts of stealing. There are three major types of insurance contracts for burglary, robbery, and other theft. Burglary is defined to mean the unlawful taking of property within premises that have been closed and in which there are visible marks evidencing forcible entry. Such narrow definition is necessary to restrict burglary coverage to a particular class of criminal act. Robbery is defined as that type of unlawful taking of property in which another person is threatened by either force or violence. In the robbery peril, therefore, the element of personal contact is necessary.

Perhaps the most common of all burglary coverages is on safes. Often the loss in the form of damage to the safe itself from the use of explosives and other devices is as great as the loss of the money, jewelry, or securities it contains. Accordingly, the policy covers both types of claims. Another common burglary policy applies to mercantile open stock. In this type of policy, there is usually a limit applicable on any article of jewelry or any article contained in a showcase where susceptibility to loss is high. In order to prevent underinsurance, the mercantile open stock policy is usually written with a coinsurance requirement or with some minimum amount of coverage.

Another common theft policy for business firms is a comprehensive crime contract covering employee dishonesty as well as losses on money and securities both inside and outside the premises, loss from counterfeit money or money orders, and loss from forgery. This policy is designed to cover in one package most of the crime perils to which an average business is subject.

A broad form of crime protection for individuals is offered both as a separate contract and as part of a “homeowner’s policy.” It covers all losses of personal property from theft and mysterious disappearance.