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.
Some of the items in this category, such as batteries, light bulbs and pesticides, are also considered universal waste. Non-hazardous waste Non-hazardous wastes, which comprise the other category of solid waste, are solid wastes that do not meet the Resource Conservation and Recovery Act (RCRA) and are not subject to RCRA Subtitle C regulations. However, it is not safe to assume that waste classified as non-hazardous poses no risk.