Section 24251 Of Article 1. General Provisions From California Vehicle Code >> Division 12. >> Chapter 2. >> Article 1.

. Any requirement in this chapter as to the distance from which any lighting equipment shall render a person or vehicle visible or within which any lighting equipment shall be visible shall apply during darkness, directly ahead upon a straight, level unlighted highway, and under normal atmospheric conditions, unless a different time, direction, or condition is expressly stated.