Does having a medical marijuana card protect you from a DUI charge?

Answer:
No. Much like other prescription medications, having a valid medical marijuana card or prescription doesn’t automatically shield you from a DUI charge. If an officer determines you were actually under the influence of marijuana while driving, you can still be charged. If this happens to you, give us a call and let us help.

What the Registry Card Actually Authorizes

Georgia’s medical cannabis program, established under the Haleigh’s Hope Act at O.C.G.A. § 16-12-200 et seq., lets registered patients legally possess low-THC oil for a qualifying medical condition. The card issued under this program, and the possession rules at O.C.G.A. § 16-12-191, are about what you’re allowed to have — they don’t say anything about when you’re allowed to drive.

Why the Card Doesn’t Reach the DUI Statute

Possession law and DUI law are two entirely separate statutes doing two entirely separate jobs. The registry card protects you from a possession charge for having low-THC oil; it has no bearing on Georgia’s DUI statute, which asks a completely different question — whether you were actually impaired behind the wheel. Being legally allowed to have and use something doesn’t mean you’re legally allowed to drive on it.

The Same Principle Behind Love v. State

This distinction is actually rooted in the same case that reshaped Georgia’s marijuana DUI law generally. In Love v. State, 271 Ga. 398 (1999), the Georgia Supreme Court struck down the old zero-tolerance marijuana DUI provision because it treated legally sanctioned marijuana users differently from illegal users under a bare presence standard. The Court didn’t say legal use excuses impaired driving — it said the state can’t single out legal users for stricter treatment when the actual danger, impairment, is the same regardless of legal status. Impairment is still what the law cares about, for every marijuana user alike.

What Changed in 2026

Georgia’s medical cannabis program itself has continued to evolve. Legislation signed in 2026 renamed the program from “low-THC oil” to “medical cannabis,” replaced the old 5% THC concentration cap with a possession-limit approach, and expanded the list of qualifying conditions. None of those changes touch the DUI statute — they expand what patients can legally possess and use, not what they can legally do behind the wheel while impaired.

What Actually Matters in a Medical Marijuana DUI Case

Because the card itself isn’t a defense, these cases come down to the same evidence any marijuana DUI case does: driving pattern, field sobriety test performance, an officer’s observations, and blood test results. A valid card can be useful context — it can help explain a positive test result and take certain arguments off the table — but it doesn’t replace the need to challenge the state’s actual evidence of impairment.

What to Do Next

If this happens to you, give us a call and let us help.

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