California Revenue & Taxation Code
Cal. Rev. & Tax. Code § 60042
Official textleginfo.legislature.ca.govlast amended
“Diesel-powered train” means any diesel-powered equipment or machinery that rides on rails, including equipment or machinery that transports passengers, freight, or a combination of both passengers and freight, and equipment or machinery that only carries freight or passengers of the operator thereof. Thus, the term includes a locomotive, work train, switching engine, and track maintenance machine.
Source: view the official text