diff --git a/xml/OrganisationRegistrationAgency.xml b/xml/OrganisationRegistrationAgency.xml
index e460ce6..9d923ab 100644
--- a/xml/OrganisationRegistrationAgency.xml
+++ b/xml/OrganisationRegistrationAgency.xml
@@ -1769,6 +1769,23 @@ This org-id.guide entry is generated and maintained by Gov Org ID Finder [1] fro
             <category>CO</category>
             <url>https://gov-id-finder.codeforiati.org/countries/CO/</url>
         </codelist-item>
+        <codelist-item public-database="0" status="active">
+            <code>CO-CUIN</code>
+            <name>
+                <narrative>Colombian Unique Institutional Code</narrative>
+            </name>
+            <description>
+                <narrative>The Código Único Institucional (CUIN) is a 15-digit numeric code assigned to Colombian public sector entities by the Contaduría General de la Nación (CGN — National Accounting Authority). It was adopted by Resolution No. 767 of 2013 and has applied to all entities comprising the Colombian public sector from 1 January 2014.
+
+The CUIN classifies entities across three top-level sectors: Public non-financial corporations; Public financial corporations; General government
+
+The CUIN is an 8-part mnemonic code encoding sector, subsector, entity type, supra-region, and territorial level. It is used for public finance monitoring and reporting, and is mandatory for all public sector entities registered in the CHIP (Consolidador de Hacienda e Información Pública) system. It is also required by DIAN for annual exogenous information reporting by public entities.
+
+The CUIN is distinct from the NIT (tax identification number) and applies exclusively to public sector entities.</narrative>
+            </description>
+            <category>CO</category>
+            <url>https://www.contaduria.gov.co/definicion-del-codigo-cuin</url>
+        </codelist-item>
         <codelist-item public-database="1" status="active">
             <code>CO-NIT</code>
             <name>
@@ -2896,7 +2913,7 @@ The full Register of Schools in England is available at https://get-information-
             <category>GB</category>
             <url>https://get-information-schools.service.gov.uk</url>
         </codelist-item>
-        <codelist-item public-database="1" status="active">
+        <codelist-item public-database="1" status="withdrawn">
             <code>GB-GOR</code>
             <name>
                 <narrative>Government Organisation Register</narrative>