The Supplemental Watercraft endorsement allows an insured to obtain coverage for watercraft that are too large or too powerful to be covered under the homeowners policy, but are not quite large enough for a watercraft policy. The endorsement provides coverage for liability and medical payments. The insured must provide a description of the boat being scheduled, including length, description of outboard engine or motor, horsepower of the engine or motor, navigation period, and the owner of the outboard motor, if other than the insured.
The insured may live in an area where the boat cannot be used year-round, so the navigation period is important. The navigation period is the time the boat is docked on the water and available for use. An insured may keep a boat stored at a marina during the winter, but from May to September the insured has the boat docked at the lake that he goes to every weekend. May to September is his navigation period. Insurers often rate differently if a boat is in the water only from May to September instead of being in the water year-round. Boats with more than 25 horsepower may be scheduled, and sailing vessels 26 feet or more with or without auxiliary power may be scheduled. As with power boats, the sailboats must be described, showing both the horsepower of the engine and the navigation period.
SECTION II – LIABILITY COVERAGES
Coverage E – Personal Liability and Coverage F – Medical Payments To Others apply to "watercraft liability" involving a watercraft described in the Schedule above.
Analysis
The form is straightforward and provides liability and medical payments coverage for "watercraft liability" beyond what is provided in the homeowners form itself. The form relies on the policy definition of "watercraft liability", which is included with the definition of "Aircraft Liability", "Hovercraft Liability" and "Motor Vehicle Liability" as follows:
1. "Aircraft Liability", "Hovercraft Liability", "Motor Vehicle Liability" and "Watercraft Liability", subject to the provisions in b. below, mean the following:
a. Liability for "bodily injury" or "property damage" arising out of the:
(1) Ownership of such vehicle or craft by an "insured"; (2) Maintenance, occupancy, operation, use, loading or unloading of:
(a) An aircraft, hovercraft or watercraft by any person; or (b) A motor vehicle by an "insured";
(3) Entrustment of such vehicle or craft by an "insured" to any person; (4) Failure to supervise or negligent supervision of any person involving such vehicle or craft by an "insured"; or (5) Vicarious liability, whether or not imposed by law, for the actions of a child or minor involving such vehicle or craft.
b. For the purpose of this definition:
(1) Aircraft means any contrivance used or designed for flight except model or hobby aircraft not used or designed to carry people or cargo; (2) Hovercraft means a self-propelled motorized ground effect vehicle and includes, but is not limited to, flarecraft and air cushion vehicles; (3) Watercraft means a craft principally designed to be propelled on or in water by wind, engine power or electric motor, except model or hobby watercraft not designed to carry people or cargo; and (4) Motor vehicle means a "motor vehicle" as defined in 11. below.
Any "bodily injury" or "property damage" arising out of the ownership, maintenance, use, occupancy, operation, loading or unloading of a watercraft is what defines "watercraft liability". While not a defined term, watercraft are those craft principally designed to be propelled on or in water by wind, engine power or electric motor. An exception exists for hobby watercraft not designed to carry people or cargo. This is very broad, allowing for craft such as motorized surfboards, jet skis, and other types of craft to be scheduled onto the endorsement.
SECTION II – EXCLUSIONS
With respect to the watercraft described in the Schedule, Exclusion B. Watercraft Liability is replaced by the following:
B. Watercraft Liability
1. Coverages E and F do not apply to any "watercraft liability" if, at the time of an "occurrence" the involved watercraft is being:
a. Operated in, or practicing for, any prearranged or organized race, speed contest or other competition. This exclusion does not apply to a sailing vessel or a predicted log cruise; b. Rented to others; c. Used to carry persons or cargo for a charge; or d. Used for any "business" purpose.
2. Coverages E and F do not apply to "bodily injury" to any "employee" arising out of and in the course of employment by an "insured" if the employee's principal duties are in connection with the maintenance, operation or use of a watercraft described in the Schedule. All other provisions of this Policy apply.
Analysis
Once the coverage provided has been explained, the form addresses exclusions. It removes the watercraft liability exclusion from the policy and replaces it with one much less restrictive since the idea is to provide liability coverage. There are only four exclusions; the first is the standard racing exclusion, where any practicing or operating of a craft for any prearranged or organized race, speed contest, or other competition is excluded. The exception for sailing vessels or predicted log cruises applies. This is the standard racing exclusion found in any vehicle policy.
The other exclusions are for the renting of the craft to others, using the craft to carry persons or cargo for a fee, or "business" use. All of these exclusions entail the insured charging others for the use of the boat in some way, shape, or form, or for any "business use" of an insured, even if the insured is not transporting people or cargo for a fee. If the insured is entertaining customers of his business on his boat, any injuries received by passengers would be excluded.
A final exclusion exists for "employees" whose primary duties are in connection with the maintenance, use or operation of a scheduled watercraft if the injury occurs while the employee is performing his duties. For example, an insured has surgery and is unable to operate his boat for the summer. He hires a seaman to help him take care of the boat and drive it for him when he wants to go out on the water. If the seaman is injured while caring for the boat, those injuries are not covered. Includes copyrighted material of Insurance Services Office, Inc., with its permission.

