Pull to the right.
(for California, probably for most U.S. states as well)
False
100 feet
The driver in the lane that is not blocked. The other driver must wait for a clear lane before proceeding.
You should stay in your lane and keep a safe distance from the approaching vehicle. Make sure your lights are on if visibility is poor and be prepared to take evasive action if necessary. Avoid any sudden movements or distractions to maintain control of your vehicle.
To avoid a head-on collision, stay aware of your surroundings, maintain a safe following distance, and refrain from distractions while driving. Always drive in your lane and be cautious on curves and blind spots. If you see a vehicle approaching in your lane, immediately slow down, honk your horn, and try to veer to the side to prevent a collision.
100 feet
move to a lane not adjacent to emergency vehicle and pass with caution
Be considerate in using your high beams. Your headlights must be on low beam when you are within 500 feet (150 m) of an approaching vehicle, or within 200 feet (60 m) of a vehicle ahead of you, even if the vehicle ahead is in a different lane. You should also dim your lights for pedestrians approaching you. http://www.nydmv.state.ny.us/dmanual/chapter10-manual.htm (Alaska and Oregon are the same as New York - 500 feet.)
I would say the vehicle on the right is at fault, because the vehicle on the left is a "passing vehicle." You must always yield the right-of-way and keep to the right of a passing vehicle on the left. Or whoever has the bigger vehicle
When approaching an emergency vehicle parked on a two-lane roadway with the emergency lights activated, you must slow down to a safe speed and move to a lane that is not immediately adjacent to the emergency vehicle. If this is not possible due to traffic or road conditions, you should proceed with caution and be prepared to stop if necessary. The exact speed reduction may vary depending on the situation, but it is important to prioritize the safety of emergency personnel and other drivers on the road.
HOV lane (High Occupancy Vehicle) 2+ passengers must be in the vehicle while driving in said lanes.
A quick flash of the headlights helps. Whatever you do, don't dodge into their lane, because that is where they will be going.