The comprehensive general liability policy form was initially developed by the Insurance Services Office (
ISO) in 1940 and revised several times thereafter. It was the first commercial liability form to combine many coverages under a single contract. Coverage included bodily injury and property damage liability insurance for operations at (or emanating from) described premises. Any new locations or operations added during the policy year were automatically insured. Although some insurers still use this form, it has been largely replaced by the commercial general liability policy (which has the same abbreviation CGL) introduced by
ISO in 1986.