Assertion: waste's material | /r/IsA | hazardous wastes
Facets:
Source sentences:
text: These materials are classified as hazardous wastes.
text: In order for a material to be classified as a hazardous waste, it must first be a solid waste.
text: Only materials that meet the definition of solid waste under RCRA can be classified as hazardous wastes, which are subject to additional regulation.