California Code
CHAPTER 8 - Regulations General Provisions
Section 18871.7.

18871.7. In every park there shall be installed and kept burning from sunset to sunrise sufficient artificial light to adequately illuminate every building containing toilets and showers, and roadways and walkways within the park.

(Added by Stats. 2001, Ch. 434, Sec. 39. Effective January 1, 2002. Operative January 1, 2004, by Sec. 44 of Ch. 434, as amended by Stats. 2002, Ch. 1038.)