If you plan to consume marijuana, consider the following guidelines:
• Wait at least 6 hours after smoking marijuana containing less than 35 mg THC before driving, biking or performing other safety-sensitive activities. If you've smoked more than 35 mg, you need to wait longer.
• Wait at least 8 hours after eating or drinking marijuana containing less than 18 mg THC before driving, biking or performing other safety-sensitive activities. If you've consumed more than 18 mg, wait longer — and, if you have consumed alcohol as well, it's important to wait even longer.
• Driving impaired should never be an option