Smoking in your car is legal in Oklahoma, but it's not consequence free. Workplace policies often prohibit it in company cars and rideshare drivers can't smoke on the job. Smoking while driving can also lead to distracted driving citations. More importantly, smoking in an enclosed vehicle creates secondhand smoke levels 10 times higher than EPA limits, putting passengers’ health at risk. Oklahoma is one of a few states without laws protecting kids from smoke exposure in cars. Here's a guide to understanding when smoking is restricted, why keeping your car smoke free protects everyone and how to make the transition easier.