infraction: fines, no jail time.
misdameanor: punishiable up to 1 year in jail. (类似中国的拘留,因为jail是本县的监狱,离家近)
felony: punishable more than 1 year in prison. (这个监狱是州立的集中营,prison可能离家几十里甚至一百里)