How to enforce 3-foot passing law to protect bicyclists

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<a href="http://www.bikingbis.com/2013/09/16/how-to-enforce-3-foot-passing-law-to-protect-bicyclists/">http://www.bikingbis.com/2013/09/16/how-to-enforce-3-foot-passing-law-to-protect-bicyclists/</a>

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