Most subcontracts include a flow through provision (also called flow down and incorporation clauses) stating that the subcontractor and contractor are bound by the same obligations as set forth in the prime contract between the contractor and owner. Many jurisdictions interpret such provisions narrowly, as illustrated in a recent case out of New York. In Amerisure Insurance Company v. Selective Insurance Group, Inc., 2023 WL 3311879, the U.S. Court of Appeals for the Second Circuit affirmed the District Court’s interpretation of a flow through clause in a construction subcontract. The Amerisure case involved a dispute over insurance coverage for a personal injury to a subcontractor’s employee on a construction project. The owner of the project sought defense and indemnity from the general contractor (GC) and its insurance company, who in turn sought coverage for the owner as an additional insured under the subcontractor’s policy. The GC based its argument for coverage on the flow through provision in the subcontract.

The prime contract required the GC to procure commercial liability insurance including the owner as an additional insured for claims caused by the GC’s negligent acts or omissions. The subcontract likewise required the subcontractor to procure commercial general liability insurance but required only that the GC be named as an additional insured. However, the subcontract also included a flow through clause, binding the subcontractor to the terms of the prime contract and assuming toward the GC all the obligations and responsibilities that the GC assumed toward the owner. However, the subcontract did not expressly require that the subcontractor name the owner as an additional insured, and in order for the owner to qualify as an additional insured under the subcontractor’s insurance policy, the subcontractor must have agreed in the subcontract to name the owner as an additional insured.