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Destruction and Disposal

Destruction of Medical Marijuana

Prior to destroying or disposing of any medical marijuana item, a registrant must obtain written approval from the Oregon Medical Marijuana Program (program) for a Destruction and Disposal of Marijuana Plan (Plan). Approval is required regardless of whether destruction and disposal is to occur as a result of formal enforcement action or is voluntary (business closure, old stock, etc.). The registrant will be notified in writing when the plan is approved and will be advised how to proceed.

Voluntary destruction of marijuana. Requires a Voluntary Marijuana Item Destruction Request form (for Dispensary and Processing Site registrants) or a Grower and Caregiver Voluntary Marijuana Item Destruction Request form, in addition to the Destruction and Disposal of Marijuana Plan and supporting documentation.

Destruction. Registrant must use a destruction method that: (1) Complies with all state and local laws (including waste disposal); and (2) Makes the marijuana item undesirable, unrecognizable and unfit for human or animal use; incapable of growth or germination. “Use” includes, but is not limited to, ingestion, inhalation, topical application, processing or remediation.

Destruction Methods. Allowable methods for making marijuana items unusable are by grinding (for solids) and incorporating or absorbing (for liquids) the marijuana items with other material so the resulting mixture is at least fifty percent (50%) non-marijuana waste. See Table 1, below.

Alternative Destruction Methods. It is understood that destruction methods may be available that are not included in the Destruction and Disposal Methods Table. Registrants may propose alternative destruction methods to the program in writing. The program must approve the alternative destruction method, in writing, prior to destruction.

Security. After completing approved destruction, registrant must prevent public access to the marijuana items that have been destroyed. The destroyed marijuana material must be stored in (1) a secure, locked container that cannot be readily moved, or (2) inside a secure, locked building, until it can be transferred to landfill or compost facility, in accordance with approved plan.

Disposal. Disposal must be accomplished by delivery of the destroyed marijuana to an offsite solid waste processing facility, such as a municipal or regional landfill, incinerator or composting site. For more information on cannabis disposal, and disposal facilities available in your area, visit the Oregon Department of Environmental Quality (DEQ) website: http://www.oregon.gov/deq/Regulations/Pages/Marijuana-Regulation.aspx

Hazardous Waste Determination. The extraction process is considered an industrial process; making any waste generated an industrial waste. Generators of industrial waste must make their own determination whether their waste is a hazardous waste requiring special management and regulation. In most cases, cannabis extracts are not considered a hazardous waste. For assistance, please contact the DEQ Hazardous Waste Technical Assistance contact responsible for your county.

Documentation of Destruction and Disposal. The program will make every effort to have staff directly witness and document destruction at the registrant’s premises and to be available to witness offsite disposal.

In the event that program staff are not available to witness destruction, the registrant will be required to make the marijuana items undesirable, unusable and unrecognizable, in accordance with the approved plan, prior to disposal. The registrant must then secure and hold the destroyed marijuana material for three days during which time OMMP staff may arrive to confirm destruction. When approved to destroy or dispose of marijuana items independent of direct program staff observation, the registrant shall submit a signed and notarized Verification on Oath or Affirmation form, provided by the program.

Table 1. Destruction and Disposal Methods

Marijuana Item Destruction Methods to make items unusable prior to disposal Disposal Method
Marijuana Plants Mix with yard debris, wood chips, sawdust, soil, manure, vegetable based grease or oils, other wastes. Compost or anaerobic digester, if available off-site
Usable Marijuana Mix with yard debris, wood chips, sawdust, soil, manure, vegetable based grease or oils, other wastes. Landfill, transfer station or incinerator, if composting not available or feasible
Liquid Concentrate, Tincture, or Suppository Absorb in cat litter, slack lime, soil or similar substance Landfill, transfer station or incinerator
Solid Concentrate, Edible, or Transdermal Patch Mix with soil, slack lime, garbage or similar substance Landfill, transfer station or incinerator
For the following marijuana items, first determine if it is a hazardous waste. (See Hazardous Waste Determination.)
Liquid Extract If not a hazardous waste, absorb in cat litter, slack lime, soil or similar substance Landfill, transfer station or incinerator
If a hazardous waste, contact DEQ for assistance with how to manage Hazardous Waste disposal
Solid Extract If not a hazardous waste, mix with soil, slack lime, garbage or similar substance Landfill, transfer station or incinerator
If a hazardous waste, contact DEQ for assistance to manage as hazardous waste Hazardous Waste disposal

How to Submit. Send the Plan Proposal form and supporting documentation to the Oregon Medical Marijuana Program, using one of the following methods.

Preferred method for MMD/MMPS registrants: Sign into your online account at https://mmdapply.oregon.gov. Upload the completed form and supporting documents to the “Documents” tab.

Available to all registrants:

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