The headlights have the specific legal requirements, the main being aiming towards the front in a manner, which does not blind other users on the road and ensuring that the road is well illuminated. The aim of the headlights must be checked approximately once a year or when the headlight has been replaced or front-end body work has been carried out. The up-and-down adjustment is achieved through the vertical adjustment nut/screw situated on top of the base of the headlight housing and only accessible with a long- Philips type screwdriver while the left-and-right adjustment is done by means of a small horizontal adjuster screw which is locked in place by a small pin/retainer besides it and should ordinarily not be touched as it is meant for repositioning the housing only. In order to align the headlights, park the car at 25 feet away from a blank wall, and use the masking tape to make outlines of vertical directives on middle of the car, as well as on both headlights besides the horizontal line of the tapes' cross section. The vehicle settings must be ideal, it has to be with a half tank of fuel and it must be light. To position it for low beam lighting, move the high intensity zone two inches below the horizontal line or below the bulb so that it is two inches to the side of oncoming traffic and then turn the top screw to this position. When the high beams are on, the high-intensity area should lie slightly beneath the line formed by the low beams in mind that the low beams are more important for safety. Perhaps, it is best to bring the vehicle to a professional for alignment of the headlights at the soonest time possible. Lastly, there are front fog light housings that could be adjusted from under the car front; however, adjustment is rarely done unless it is replacement.