I have a question about voter registration in the USA.

Once you have registered at your home address how often do you have to confirm the details? Each year?

Here in the UK the government, via local councils, check each year to see if the details are correct for each address. If they are correct there is no need to do anything. We only have to reply if any of the details have changed.

Here in the UK, you can also contact the authorities yourself if you need to be added.