California Code, Harbors and Navigation Code - HNC § 264

(a) A captain or other person having charge of any steam vessel used for the conveyance of passengers, or of its boilers and engines, who, from ignorance or gross neglect, or for the purpose of excelling any other boat in speed, creates, or allows to be created, such an undue quantity of steam as to burst or break the boiler, or any apparatus or machinery connected with the boiler, by which bursting or breaking human life is endangered, is guilty of a felony.

(b) Notwithstanding any other provision of law, a person found guilty of a felony violation of this section shall be subject to a fine not to exceed five thousand dollars ($5,000) or imprisonment pursuant to subdivision (h) of Section 1170 of the Penal Code for 16 months, two or three years, or both that fine and imprisonment.