Complex sentence: Generally, the term "solid waste" refers to non-hazardous waste, though according to the Resource Conservation and Recovery Act (RCRA) and other state regulations, "hazardous waste" is also a part of solid waste.
Split into simpler sentences: Generally, the term "solid waste" refers to non-hazardous waste. But according to the Resource Conservation and Recovery Act (RCRA) and other state regulations, hazardous waste is also a part of solid waste.