Universal wastes are hazardous wastes that were determined to pose a lower immediate risk to people and the environment compared to other hazardous wastes. These universal wastes are widely produced by households and many different types of businesses. California' hazardous waste regulations identify eight categories of hazardous waste as "universal wastes":
Cathode ray tubes (CRTs)
Non-empty aerosol cans
Photovoltaic (PV) module
Universal Waste Rule: The universal waste rule allows individuals and businesses to transport, handle, and recycle universal wastes under a set of rules and regulations that are appropriate for the risks posed by these wastes while still ensuring the protection of people and the environment.