When passing on a two-lane road, you must first make sure you are clear to start passing by checking your rear view and side mirrors.
This refers to the laws and guidelines that direct and guide road users and pedestrians to use the roads in a safe manner.
Hence, we can see that based on the traffic laws of America, when a person is passing on a two-lane road, he must first make sure you are clear to start passing by checking his rear view and side mirrors to avoid collisions.
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