It's called, "Undue care and attention" and both of you are at fault. The person didn't look to see if there was a car coming, and you didn't look to see if someone was going to open up their door. This is a "Mexican Stand-off" and it's best to come to some conclusion over this with the other person if possible ... you each share half the cost of having your vehicle being repaired. Good luck Marcy
I beleive, whoever's car is moving (wheel-wise), is at fault.
The person driving the vehicles fault. Should have been paying attention and be alert for anything to happen at anytime.
Going ONLY by the information disclosed in the question - it would appear that the person who opend their door is at fault.
The person that opens the door is at fault
It can be called a 50/50 accident... ususally the adjuster can determine that.
Dextral opens to the right, sinistral opens to the left.
The one backing out, because you should realize someone is opening a door.
The person who opens the door.
need more info however if you were in the process of parralel parking , had pulled up to the car whose door opened into yours and the other driver opened the door while you were backing up then they are at fault and must pay you. If they were illegally parked (ie too far from curb- check local law on the distance -usually up to 18 inches from curb-, in a handicapped parking spot and they didnt have a handicapped permit etc) they have to pay you. Generally if you are pulling straight into a parking spot , if they whip their door open while you are pulling in it may be a 50/50 fault , check with your local police dept on local law. If all else fails get an atty . good luck e
Virtually ANY time a vehicle door opens into moving traffic it will be the responsibility/fault of the party who was in control of the door. The questioner states that they were CLOSING the door??? That may be their story, but it will probably be difficult proving it.
driver of parked vehicle
Using the handle which opens the doors. Instead of pulling it as you do to open, you push it in until it clicks.