The Four Hazardous Waste Accumulation Units
Unless exempted by regulation, in order to store hazardous waste onsite a generator of hazardous waste must either be a permitted Treatment Storage and Disposal Facility (TSDF) or comply with the Hazardous Waste Generator Standards of 40 CFR 262. 40 CFR 262.34 identifies the four Hazardous Waste Accumulation Units allowed a non-permitted generator and the compliance requirements of each. The purpose of this article is to describe the four Hazardous Waste Accumulation Units and summarize their regulatory requirements.