Cal. Pub. Util. Code § 7680

Every conductor, engineer, brakeman, switchman, or other person having charge, wholly or in part, of any railroad, car, locomotive, or train, who willfully or negligently suffers or causes it to collide with another car, locomotive, or train, or with any other object or thing whereby the death of a human being is produced, is punishable by imprisonment pursuant to subdivision (h) of Section 1170 of the Penal Code for two, three or four years.