This will pertain to 91/01 models. Being anal about things aligned/adjusted properly as I am, I thought I'd share this. I recently noticed one of my headlamps abit higher than the other in the "closed" position. Not by much but I have a good eye for stuff like this. Upon inspection I noticed a grommet smashed to smitherines on the lamp that sat low. Anyway, part "19" is what you need if you look at yours and see this as well. The grommets easy to see so no disassembly required. I can now sleep at night knowing they align properly. I hope this helps any of you as well.
http://www.acuraautomotiveparts.org.../Heater/Fuel&vinnoT=&trim=&trans=&view=normal
http://www.acuraautomotiveparts.org.../Heater/Fuel&vinnoT=&trim=&trans=&view=normal