Very interesting article. Learned some new specifics on our headlight design history vs what the rest of the world had (besides Canada). Leave it to US lawmakers to hold back innovation for several decades -_-
It's true. On my 1997 Accord, the headlights had those nipples for adjustment. When I installed JDM-spec replicas (Euro version also had same housing design), the highs and lows were independently adjustable, no nipples. Halogen housing headlights were then legal in 1997, apparently.