Editing Check digit (section)

=== Other examples of check digits ===

==== International ====
* The International SEDOL number.
* The final digit of an [[ISSN]] code or [[IMO Number]].
* The [[International Securities Identifying Number]] (ISIN).
* Object Management Group [[FIGI]] standard final digit.<ref>{{Cite web |title=OpenFIGI: Unlock the Power of Efficiency with Open Symbology |url=https://www.openfigi.com/ |url-status=live |archive-url=https://web.archive.org/web/20220809102404/https://www.openfigi.com |archive-date=2022-08-09 |access-date=2022-10-15 |website=OpenFIGI |language=en}}</ref>
* The International [[CAS registry number]]'s final digit.
* Modulo 10 check digits in [[credit card]] account numbers, calculated by the [[Luhn algorithm]].
**Also used in the Norwegian KID (customer identification number) numbers used in bank giros (credit transfer),
**Used in [[International Mobile Equipment Identity|IMEI]] of mobile phones.
* Last check digit in EAN/UPC serialisation of Global Trade Identification Number ([[GTIN]]). It applies to GTIN-8, GTIN-12, GTIN-13 and GTIN-14.
* The final digit of a [[Data Universal Numbering System|DUNS]] number (though this is scheduled to change, such as that the final digit will be chosen freely in new allocations, rather than being a check digit).
* The third and fourth digits in an [[International Bank Account Number]] (Modulo 97 check).
* The final digit in an [[International Standard Text Code]].
* The final character encoded in a [[magnetic stripe card]] is a computed [[Longitudinal redundancy check]].

==== In the US ====
* The tenth digit of the [[National Provider Identifier]] for the US healthcare industry.
* The final digit of a [[POSTNET]] code.
* The North American [[CUSIP]] number.
* The final (ninth) digit of the [[ABA routing transit number]], a [[bank code]] used in the United States.
* The ninth digit of a [[Vehicle identification number|Vehicle Identification Number]] (VIN).
* [[Mayo Clinic]] patient identification numbers used in Arizona and Florida include a trailing check digit{{Citation needed|date=April 2010}}.
* The eleventh digit of a [[Customs & Border Protection]] entry number.

==== In Central America ====
* The Guatemalan Tax Number (NIT – Número de Identificación Tributaria) based on [[modulo operator|modulo]] 11.

==== In Africa ====

* The [[South Africa|South African]] [[South African identity card#Identity Number|identity (ID) number]] uses the Luhn algorithm (modulus 10) to calculate its 13th and final digit.

==== In Eurasia ====
* The UK [[NHS Number]] uses the modulo 11 algorithm.
* The Spanish fiscal identification number (número de identificación fiscal, NIF) (based on modulo 23).
* The [[Netherlands|Dutch]] [[National identification number#Netherlands|Burgerservicenummer]] (BSN) (national identifier) uses the modulo 11 algorithm.
* The ninth digit of an [[Israel]]i [[Teudat Zehut]] (Identity Card) number.
* The 13th digit of the [[Serbia]]n and [[SFRY|Former Yugoslav]] [[Unique Master Citizen Number]] (JMBG). (but not all of them, due to errors or non-residency)
* The last two digits of the 11-digit [[Turkish Identification Number]] ({{langx|tr|TC Kimlik Numarası}}).
* The ninth character in the 14-character [[European Union|EU]] cattle passport number (cycles from 1 to 7: see [[British Cattle Movement Service#Ear tag number|British Cattle Movement Service]]).
* The ninth digit in an [[Iceland]]ic [[Kennitala]] (national ID number).
* Modulo 97 check digits in a [[Belgium|Belgian]] and [[Serbia]]n bank account numbers. Serbia sometimes also uses modulo 11, for reference number.
* The ninth digit in a [[Hungary|Hungarian]] TAJ number (social insurance number).
* For the residents of [[India]], the unique identity number named [[AADHAAR#Salient features of AADHAAR|Aadhaar]] has a trailing 12th digit that is calculated with the [[Verhoeff algorithm]].<ref name=gg-2011autumn>{{cite magazine |title=Unique Identification Card |magazine=Geek Gazette |url=http://gg.ieeeiitr.com/issues/6.GeekGazetteAutumn2011.pdf |archive-url=https://web.archive.org/web/20140626085659/http://gg.ieeeiitr.com/issues/6.GeekGazetteAutumn2011.pdf |archive-date=2014-06-26 |date=Autumn 2011 |page=16}}
*[https://web.archive.org/web/20121024051342/http://gg.ieeeiitr.com/e-mag/autumn2011/uid.php alternate url]</ref>
* The [[Intellectual Property Office of Singapore]] (IPOS) has confirmed a new format for application numbers of registrable [[intellectual property]] (IP, e.g., [[trademark]]s, [[patent]]s, [[Industrial design right|registered designs]]). It will include a check character calculated with the [[Damm algorithm]].<ref name=ipos-20140120>{{cite web |url = http://blog.cantab-ip.com/blog/2014/01/20/new-format-for-singapore-ip-application-numbers-at-ipos/ |title = New Format for Singapore IP Application Numbers at IPOS |author = Chong-Yee Khoo |date = 20 January 2014 |website = Singapore Patent Blog |publisher = Cantab IP |access-date = 6 July 2014 |archive-date = 14 July 2014 |archive-url = https://web.archive.org/web/20140714152614/http://blog.cantab-ip.com/blog/2014/01/20/new-format-for-singapore-ip-application-numbers-at-ipos/ |url-status = dead }}</ref>
* The last digit of Chinese citizen ID number (second generation) is calculated by modulo 11-2 as specified in Chinese GuoBiao (aka national standard) GB11643-1999 which adopts [[ISO/IEC 7064|ISO 7064:1983]]. 'X' is used if the calculated checking digit is 10.
*The 11th digit of [[Estonia]]n [[Isikukood]] (Personal Identification Code).
*The last letter on [[vehicle registration plates of Singapore]].

==== In Oceania ====
* The Australian [[tax file number]] (based on [[Modulo operation|modulo]] 11).
* The seventh character of a [[New Zealand]] [[NHI Number]].
* The last digit in a [[Locomotives of New Zealand|New Zealand locomotive]]'s Traffic Monitoring System (TMS) number.