The EPA states any commerical building or School building is required to have an asbestos test regardless of year built. Any multifamily building with 4 units or more under the same roof is required regardless of year built. Any property with 2 or more structures with water plumbed is required to have an asbestos test regardless of year built. Any structure built prior to 1978 (we recommend 1982 due to fact that it was still legal for contractors to use materials in their inventory, so most materials were exhausted by 1982) is required to have an asbestos test for any materials being disturbed. This does not mean you are always going to find asbestos containing materials, but it is always better to be on the safe side.