common / Progress

Official symbol for medical marijuana unveiled by state

LANSING — Michigan has released an official symbol to label medical marijuana products that are sold in the state and is detailing required labeling for such products.

The symbol is an upside-down green triangle with an image of a green marijuana leaf in the middle along with the words “CONTAINS THC” above it. THC is the active ingredient of marijuana.

The state Dept. of Licensing and Regulatory Affairs (LARA) also released details of labeling for medical marijuana products under the state’s “Medical Marijuana Facilities Licensing Act.” Those include date of harvest, other identifying information and concentration of THC.

LARA issued the following requirements for package labeling:

• Prior to marijuana product being sold or transferred to or by a provisioning center, the container, bag, or product holding the marihuana product must have a label and be sealed with all the following information:

• The name of the licensee and license number of the producer and/or the packager.

• The tag or source number as assigned by the statewide monitoring system.

• The unique identification number for the package or the harvest, if applicable.

• Date of harvest, name of strain, net weight, and concentration of THC or


• Activation time expressed in words or through a pictogram.

• Name of the safety compliance facility that performed any test, any associated test batch number, and any test analysis date.

• A warning that states the following: “For use by registered qualifying patients only. Keep out of reach of children. It is illegal to drive a motor vehicle while under the influence of marihuana.”

• The universal symbol published by the department.

Michigan voters approved marijuana use in 2008 for some chronic medical conditions. New regulations were approved in 2016.

Jeff Hogan

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