DENVER (AP) -- Marijuana driving standards are becoming routine debates around the Colorado Capitol, with a drugged driving bill headed back to the state Legislature for the third time in the last two years.
Gov. John Hickenlooper says it's "common sense" to pass blood-level marijuana limit for drivers as an analogy to existing blood-alcohol limits. Hickenlooper added the marijuana driving bill to a special session beginning Monday to address civil unions for same-sex couples.
However, the marijuana driving bill has stumped Colorado lawmakers before, and it may do so again. Marijuana activists who decry the proposed blood limit as unfair and a bad predictor of driver impairment say they're going to renew efforts to stop the bill.
The marijuana bill failed late last week and starts from scratch when lawmakers return.
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