Which type of asbestos work does NOT include surfacing material?

Class II Asbestos work involves the removal, repair, or encapsulation of asbestos-containing materials that are non-friable, meaning they do not crumble easily and are not typically found in surface materials. Examples of Class II materials include asbestos-containing tiles, insulation on ducts, and any other building materials where the asbestos is bonded in a way that decreases the likelihood of airborne fibers being disturbed.

In contrast, Class I Asbestos work deals with the removal of thermal system insulation and surfacing materials such as spray-applied fireproofing, which do include surfacing materials. Class III work involves repair and maintenance activities where friable asbestos-containing materials are disturbed, and Class IV work entails custodial activities that may encounter asbestos but do not disturb the material itself. Therefore, Class II Asbestos work is the correct choice because it specifically excludes surfacing materials from its scope.