ORS 816.170: Spotlights.

Each of the following is a requirement for spotlights as indicated: (1) Spotlights must be mounted, adjusted and aimed in accordance with standards adopted by the Department of Transportation. (2) Spotlights and any part for such spotlights that tends to change the original design or performance must be of a type that complies with standards adopted by the department under ORS 816.010. [1983 c.338 §458 (14); 1985 c.16 §240 (14); 1985 c.69 §1 (14); 1985 c.71 §4 (14); 1985 c.393 §13 (14); 1985 c.420 §6 (14); 2003 c.158 §26]