An Act relative to spare tires

This bill prohibits vehicles operating on a temporary spare tire from driving in the leftmost lane of the road, regardless of whether that lane is otherwise available. It directly affects drivers using spare tires (typically temporary, low-speed replacements) by restricting their lane choice while driving. The key provision amends traffic law to require these vehicles to stay out of the left lane, aiming to improve safety given the reduced stability of spare tires. The rule takes effect immediately upon the bill's passage.