DFD vs ERD. DFD and ERD are different data models that are mainly used for organizing business data for proper communication between members of a group. DFD shows how data enter a system, are transformed in that system, and how it is stored in it.
Freebase(0.00 / 0 votes)Rate this definition: Universal waste. Universal waste is a category of waste materials designated as hazardous waste, but containing materials that are very common. It is defined in 40 CFR part 273, by the United States Environmental Protection Agency but states may also have corollary regulations regarding these materials.
Solid waste is regulated on the federal level by the EPA in accordance with the Resource Conservation and Recovery Act (RCRA), which provides the EPA with the authority to regulate hazardous wastes from cradle to grave.. This includes when it's made to when it's disposed of, and everything in between. Waste stream. A waste stream is the flow or movement of wastes from the point of generation (e.g., a household or veterinary practice) to final disposal (e.g. incineration, landfill, etc.).