When is it permissible to drive in a bike lane?

It is permissible to drive in a bike lane only when making a right turn. This rule is established to ensure the safety of cyclists who are utilizing the bike lane. When a driver prepares to make a right turn, they may enter the bike lane prior to the turn in order to position their vehicle safely. However, it is crucial for the driver to check for cyclists before doing so to avoid accidents.

The other scenarios described in the choices do not provide valid reasons for driving in a bike lane. For instance, anytime driving in a bike lane if no cyclists are present can endanger cyclists who may emerge unexpectedly or who have the right to use that space. Making a U-turn or passing another vehicle in a bike lane also compromises the safety of cyclists and goes against the regulations set to protect non-motorized roadway users. Thus, the only allowable instance is while making a right turn, provided that it is done with caution toward cyclists and adequate signaling.