Section 18007 Of Chapter 1. General Provisions From California Streets And Highways Code >> Division 14. >> Part 1. >> Chapter 1.

. "Improvement," and any of its variants, include the maintenance or servicing, or both, of all or part of any one or more street lighting systems and, where applicable, the installation of street lighting systems owned by any public utility subject to the jurisdiction of the Public Utilities Commission of the State of California.