Your hazardous waste generator status determines how much waste you may accumulate at your site at one time, and how quickly you need to ship it off-site for recycling or disposal.

If you generate less than 220 pounds (approximately 27 gallons) of hazardous waste or waste oil per month and no acutely hazardous waste, you are a Very Small Quantity Generator (VSQG). As a VSQG, you may accumulate up to 2,200 pounds (about 270 gallons) for an indefinite period of time.

  • If you generate between 220 and 2,200 pounds per month (approximately 27 to 270 gallons), and/or up to 1 kilogram (2.2 pounds) of acutely hazardous waste per month, you are a Small Quantity Generator (SQG) and may accumulate up to 13,200 pounds (1,500 to 1,620 gallons) for no more than 180 days.
  • If you generate more than 2,200 pounds (approximately 270 gallons) and/or more than 1 kilogram (2.2 pounds) of acutely hazardous waste per month, you are a Large Quantity Generator (LQG). You may accumulate any quantity on-site, but must ship it within 90 days. Please minimize your waste to the best of your ability.

Note: The same numerical thresholds apply to both hazardous waste and waste oil. You may register separately and maintain different generator status for each, depending on the quantities you generate.

Notification Requirements

Before generating, accumulating, or shipping any hazardous waste, you must notify MassDEP of your hazardous waste activities.

If you are a VSQG, SQG or LQG of hazardous waste or waste oil, you must file a Massachusetts VSQG/SQG/LQG Notification of Hazardous Waste Activity Form  pdf format of Notification of Hazardous Waste Activity Form
doc format of                             Notification of Hazardous Waste Activity Form                with MassDEP and comply with all requirements that apply to your status. This form may also be used to notify MassDEP that you are relocating or discontinuing your hazardous waste activities.