Wastes Excluded by Regulation
Conditionally Excluded Wastes
The Dangerous Waste Regulations conditionally exclude some dangerous wastes. See Excluded categories of waste at WAC 173-303-071. Excluded wastes remain solid wastes, but they generally are not subject to most of the dangerous waste rules, including counting and annual reporting requirements. Usually the waste must meet a set of specific conditions in order to qualify for the exclusion.
These wastes may be excluded because:
For example, a household-hazardous-waste exclusion removes household waste from dangerous waste regulation. Other exclusions include treated wood waste, polychlorinated biphenyl's (PCBs), and waste reclaimed and reused in a closed loop system. Many other excluded wastes are listed in the regulations. This page lists some of the most common ones.
Special Wastes are another category of state-only excluded wastes with their own set of management requirements.. See Conditional exclusion of special wastes at WAC 173-303-073. Special Wastes are only solid phase wastes that are state corrosive, level D toxic or non-EHW persistent. Special wastes pose a relatively low hazard to the environment. Subject to approval, they may be disposed in municipal landfills or recycled.
Domestic Sewage Exclusion (DSE)
This exclusion allows dangerous waste to be discharged to a publicly-owned treatment works (POTW). Washington state’s version of the DSE exclusion is more stringent than the federal exclusion. Important conditions include:
Selected Other Exclusions
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