When is passing allowed on the road?

Passing is generally allowed on the left side of the road when it is safe to do so. This practice is established because vehicles in most countries, including Puerto Rico, drive on the right side of the road. As a result, the left lane is designated for overtaking slower vehicles.

When you pass on the left, you have a clear line of sight, which helps to minimize the risk of accidents compared to passing on the right, where visibility may be obstructed by other vehicles, especially larger ones like trucks. Additionally, passing on the left is a standard rule that reinforces predictable behavior among drivers.

It is also important to note that certain conditions must be met for passing to be considered safe, including ensuring there is enough space, checking mirrors, and signaling intentions. Factors such as road conditions, speed limits, and road markings also influence where and when passing is permitted. In contrast, passing on the right or under certain conditions may not comply with traffic laws, making it less favorable and more dangerous.