By Kristen Wyatt
DENVER—A marijuana blood limit for drivers was rejected Tuesday for a third time in Colorado, as lawmakers from both parties argued about how to fairly gauge whether someone is too stoned to get behind the wheel.
The bill would have made Colorado the third state in the nation with a blood-level limit for marijuana, much as the nation has a blood-alcohol limit of .08.
Currently, drugged-driving convictions depend on officer observations.
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