You may drive in HOV lanes if:

Some highways reserve the left lane for vehicles with two or more occupants or hybrid/low-emission vehicles. These High Occupancy Vehicle (HOV) lanes are identifiable by signs and diamond pavement symbols and are separated from other lanes by a striped buffer zone. Vehicles may enter and exit the HOV lane only at designated points.

• You are driving faster than the flow of traffic.
• You are driving more slowly than the flow of traffic.
• Your vehicle has two or more occupants.
• You are trying to get somewhere quickly.