In some cases, when there are concerns about the possibility of voting at more than one polling station, the voters may be required to dip one of their fingers in indelible ink to indicate that they have received a ballot. The manner in which voters prove their identity varies considerably from one country or jurisdiction to another. In countries where it is the norm for citizens to carry identification, such as a national identity card, driver's licence, employment identification card, health care identification card, and other such pieces of identification, then it is possible that no additional identification materials are issued by election administration officials. This is the case in most states in the United States. It should be noted, however, that while this is the norm in the United States, very few registration offices actually ask for any identification.
Voters simply sign the voters list or register.
And since the advent of computerized files, often there is no original signature for comparison. In the Survey of the Comparative Election Administration Study, reported in Choe, the voter registration procedures in eleven countries are compared for their flexibility in issuing ballots. 14 Choe found that of the eleven countries surveyed, including Australia, Canada, Denmark, Finland, France, Germany, Korea, Sweden, Switzerland, the United Kingdom, and the United States, all used some variation of postal delivery, sometimes with the option of picking it up in person. In addition, with the exception of Korea, all provided the possibility of voting even if the voting card was lost or not otherwise available at the polling booth. In these cases, most accepted either an alternative identification card or simply referred to the published voters list.