Postal code outdated

Property	Value
A technical identifier, unique in a certain context. Technical key	POSTAL_CODE_OUTDATED
The human-friendly name shown for this concept in the user interface, used instead of the technical name to improve readability and understanding. Display name	Postal code outdated
Informal and comprehensive human-readable definition of a concept. Description	This category includes data quality rules that detect postal codes that were once valid but have been retired, replaced, or reorganized by postal authorities. Postal code systems evolve over time as geographic boundaries change, postal routes are reorganized, or administrative reforms occur. Outdated postal codes might still be syntactically correct and might have existed in the past, but they are no longer current in the postal system. Using outdated postal codes can lead to delivery delays, incorrect routing, or failed address validation with current postal databases. These rules help identify addresses that need updating to current postal codes. The validation supports the Representational_consistency dimension by flagging postal codes that don't align with current postal code reference data.
Hierachical parent concept of a concept. Parent	Format

Data quality rules

CDQ manages 11 data quality rules in this category.

Data quality rule	The country a linked concept is active or generally relevant for. Country scope	Informal and comprehensive human-readable definition of a concept. Description	Criticality<br/>Specifies how critical of the violation of a data quality rule.<br/>ERROR: Indicates a critical data quality rule violation that requires correction.<br/>WARNING: Indicates a potential data quality issue that should be reviewed.<br/>INFO: Indicates an informational finding with no immediate impact on data quality. Criticality	Rule release status<br/>The release status in terms of development progress or maturity of a data quality rule.<br/>IDEA: Initial rule definition that documents a business requirement but is not yet active in services.<br/>PLANNED: Rule is specified and scheduled for implementation, but not yet active in services.<br/>DRAFT: Rule concept is being prepared or refined but is not yet finalized for implementation or execution.<br/>HYPERCARE: Rule is newly released and under increased observation to ensure stable behaviour and correct results.<br/>RELEASED: Rule has passed verification and is actively executed in productive CDQ services.<br/>DEACTIVATED: Rule is temporarily removed from the active rule set because it needs correction or clarification before re release.<br/>BLOCKED: Rule cannot be released because something it depends on is missing, for example a data source or a clarification.<br/>ARCHIVED: Rule is permanently retired and no longer maintained or intended for future activation. Rule release status
Deprecated post code format identified (Afghanistan) REPRESENTATIONAL_CONSISTENCY	AF (Afghanistan)	This rule identifies Afghan post codes that still follow the superseded format. Effective 1 October 2024 Afghanistan replaced its four-digit post codes with six-digit ones, as documented in the UPU addressing file for Afghanistan, the new code is generally the old one followed by two digits for the postal delivery zone. The rule reports post codes with exactly four digits. This is not a data defect but a hint that the value should be migrated, it does not distinguish a genuine legacy code from a truncated six-digit one.	INFO	HYPERCARE
Deprecated post code format identified (Argentina) REPRESENTATIONAL_CONSISTENCY	AR (Argentina)	This rule identifies Argentine post codes that still follow the superseded format. The Argentine postal code, the CPA or Código Postal Argentino, changed in 1999 from a block of four digits to a block of eight characters made up of one letter, four digits and three letters.	INFO	RELEASED(2021-09-10)
Deprecated post code format identified (Cambodia) REPRESENTATIONAL_CONSISTENCY	KH (Cambodia)	This rule identifies the old five-digit post code format of Cambodia, which was replaced in 2018 by a six-digit post code.	INFO	RELEASED(2024-04-16)
Deprecated post code format identified (El Salvador) REPRESENTATIONAL_CONSISTENCY	SV (El Salvador)	This rule searches for the old post code format of El Salvador, which consisted of five digits and was in use up to 1997, when the current four-digit format was introduced.	INFO	HYPERCARE
Deprecated post code format identified (Honduras) REPRESENTATIONAL_CONSISTENCY	HN (Honduras)	This rule identifies the old post code format of Honduras. Honduras once introduced a postal code of six alphanumeric characters, two letters followed by four digits, that replaced a five-digit postal code. As far as is known the five-digit code is again in common use today and has replaced the six-character one.	INFO	RELEASED(2024-04-16)
Deprecated post code format identified (Kazakhstan) REPRESENTATIONAL_CONSISTENCY	KZ (Kazakhstan)	This rule searches for the old post code format of Kazakhstan. In 2016 Kazakhstan introduced a new seven-character postal code, the pochtovye indeksy, to replace the six-digit code that had been in use since 1997. The new code has seven alphanumeric characters, for example D03K5Y2, and is intended to represent a single building. The new system currently runs in parallel with the old one, as many people continue to use the six-digit codes.	INFO	RELEASED(2024-04-16)
Deprecated post code format identified (Mauritius) REPRESENTATIONAL_CONSISTENCY	MU (Mauritius)	This rule searches for the old post code format of Mauritius, which consisted of seven alphanumeric characters.	INFO	RELEASED(2024-04-16)
Deprecated post code format identified (Portugal) REPRESENTATIONAL_CONSISTENCY	PT (Portugal)	This rule searches for the old post code format of Portugal, which consisted of four digits.	ERROR	RELEASED(2021-09-10)
Deprecated post code format identified (South Korea) REPRESENTATIONAL_CONSISTENCY	KR (South Korea)	This rule searches for the old post code format of Korea, which consisted of six digits. The six-digit postal code was abolished on 1 August 2015 and replaced by the current, simpler five-digit system.	ERROR	RELEASED(2024-04-16)
Deprecated post code format identified (Taiwan) REPRESENTATIONAL_CONSISTENCY	TW (Taiwan)	This rule searches for the old post code format of Taiwan, which consisted of three digits, a hyphen and two further digits.	INFO	RELEASED(2024-04-16)
Deprecated post code format identified (Vietnam) REPRESENTATIONAL_CONSISTENCY	VN (Viet Nam)	This rule detects Vietnamese post codes that still follow the superseded format. Vietnam changed its postal code system from five to six digits in 2004 and reverted to a five-digit system in 2018, so the rule looks for post codes with six digits.	INFO	RELEASED(2024-10-16)