Final answer:
The biohazard symbol denotes regulated waste, which must be managed according to regulations in place to protect public health and the environment.
Step-by-step explanation:
The symbol used to denote regulated waste, specifically biohazardous waste, is known as the biohazard symbol. This symbol is universally recognized and indicates materials that contain biological substances that pose a threat to the health of living organisms, primarily humans. Such materials could be medical waste, samples of a microorganism, viruses or toxins that could impact public health or the environment if released. Hazardous waste management, including hazardous waste recycling, treatment, storage, and disposal, follows strict regulations outlined by the Resource Conservation and Recovery Act (RCRA) and the Atomic Energy Act for mixed wastes. These regulations ensure the proper handling of such wastes from the point of generation (the "cradle") to their ultimate disposal (the "grave"). It is critical for all hazardous waste generators to identify and manage their waste according to the regulations to protect human health and the environment.