If you live in Hays County, you can call the county's election office at 512-393-7310 or email elections@co.hays.tx.us to see if you're eligible to vote on Prop B. You can find more information on the county's elections site. If Prop B passes, when would these changes take effect? If Prop B passes, the ordinances would go into effect as soon as the election results are certified. Usually this takes a couple days, as the county clerks have to certify every single ballot cast in early voting and on Election Day, as well as mail-in and absentee ballots.