Cannabis Driving Laws by State
State laws regarding cannabis driving vary significantly. For instance, in California, it's illegal to drive with any detectable amount of THC in your system, while in Colorado, it's illegal only if you're impaired.
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Key Points by State
- California: Zero tolerance for THC in drivers.
- Colorado: Impairment-based enforcement.
- Washington: Per se limit of 5 ng/mL THC in blood.
California
California has a strict zero-tolerance policy for THC in drivers. This means that any detectable amount of THC in your system can result in a DUI charge.
Colorado
In Colorado, the law focuses on impairment rather than the presence of THC. Police can use field sobriety tests to determine if a driver is impaired by cannabis.
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Washington
Washington has a specific per se limit for THC in drivers. If a driver has 5 ng/mL or more of THC in their blood, they can be charged with a DUI.