[merpnderp]

How is voter authorization done? Passports, photo ID of some sort, list of names at the polling station?

[mungoman2]

Valid identification cards in Sweden include passports, driver's licenses and national ID cards.

[merpnderp]

So in th US Sweden would fall into either strict or unstrict if required states depending on if provisional ballots are offered if no id is presented and if they are validated with either signatures or further id. But every state allows mail in ballots without id.