When a convicted criminal has completed his sentence for a conviction for a crime committed under section 1170.18, subdivision (f) of the California Criminal Code, can the conviction be reduced to a misdemeanor?

When the person has completed the sentence, section 1170.18, subdivision (f) governs, which states: "A person who has completed his or her sentence for a conviction, whether by trial or plea, of a felony or felonies who would have been guilty of a misdemeanor under this act had this act been in effect at the time of the offense, may file an application before the trial court that entered the judgment of conviction in his or her case to have the felony conviction or convictions designated as misdemeanors." ( 1170.18, subd. (f); People v. Rivera, supra, 233 Cal.App.4th at p. 1093.)