Yes it does: http://cdn-www.airliners.net/aviation-photos/photos/7/4/7/2365747.jpg http://cdn-www.airliners.net/aviation-photos/photos/7/4/7/23... Look at the

Yes it does: http://cdn-www.airliners.net/aviation-photos/photos/7/4/7/2365747.jpg http://cdn-www.airliners.net/aviation-photos/photos/7/4/7/23... Look at the top center, at the "Fuel Jettison" switches. (This is a 777-200 non ER, but I doubt the ER model would remove this feature.)