What is the first step you should take before deciding to pass on a two-lane road?

The first step you should take before deciding to pass on a two-lane road is to make sure it is legal and that the left lane is clear of oncoming traffic. This is critical because passing another vehicle requires a clear assessment of both the legality of the maneuver and the road conditions.

Ensuring that it is legal to pass means checking for any signs that prohibit passing, as well as understanding the laws pertaining to passing on the specific road you're on. This helps prevent unsafe driving practices and keeps you and other road users safe.

Additionally, confirming that the left lane is clear of oncoming traffic is vital to avoid head-on collisions. Even if you believe it is a safe environment, oncoming vehicles can appear quickly, and being aware of their presence is essential for the safety of all involved. Therefore, this step encompasses both situational awareness and adherence to traffic regulations, making it the appropriate action to take first.