diff --git a/src/MDNodaRepositoriesSet.php b/src/MDNodaRepositoriesSet.php
index 2da45e3..8d1f81a 100644
--- a/src/MDNodaRepositoriesSet.php
+++ b/src/MDNodaRepositoriesSet.php
@@ -57,6 +57,7 @@ final class MDNodaRepositoriesSet extends MDValueSet {
         'aat',
         'ackerbau',
         'allgemein',
+        'col',
         'bne',
         'bnf',
         'gnd',
diff --git a/src/enums/MDNodaRepository.php b/src/enums/MDNodaRepository.php
index 1a0bae0..81de062 100644
--- a/src/enums/MDNodaRepository.php
+++ b/src/enums/MDNodaRepository.php
@@ -16,6 +16,7 @@ enum MDNodaRepository implements MDValueEnumInterface, JsonSerializable {
     case ackerbau;
     case bne;
     case bnf;
+    case col;
     case cona;
     case editionhumboldtdigital;
     case gnd;
@@ -52,13 +53,15 @@ enum MDNodaRepository implements MDValueEnumInterface, JsonSerializable {
     public static function fromString(string $input):MDNodaRepository {
 
         return match($input) {
-            'allgemein' => self::allgemein, // General link to a good source
+            'allgemein'                => self::allgemein, // General link to a good source
             'AAT-ID',
-            'aat'       => self::aat,
-            'ackerbau'  => self::ackerbau,
-            'bne'       => self::bne,
-            'bnf'       => self::bnf,
-            'cona'      => self::cona,
+            'aat'                      => self::aat,
+            'ackerbau'                 => self::ackerbau,
+            'bne'                      => self::bne,
+            'bnf'                      => self::bnf,
+            'col',
+            'catalogue of life'        => self::col,
+            'cona'                     => self::cona,
             'edition humboldt digital' => self::editionhumboldtdigital,
             'gnd',
             'GND',
@@ -72,6 +75,7 @@ enum MDNodaRepository implements MDValueEnumInterface, JsonSerializable {
             'http://d-nb.info/gnd/',
             'd-nb.info',
             'd-nb',
+            'Gemeinsame Normdatei',
             'https://portal.dnb.de',
             'https://explore.gnd.network/gnd/' => self::gnd,
             'grobsystematik' => self::grobsystematik,
@@ -148,6 +152,7 @@ enum MDNodaRepository implements MDValueEnumInterface, JsonSerializable {
             self::ackerbau => 'ackerbau',
             self::bne => 'bne',
             self::bnf => 'bnf',
+            self::col => 'col',
             self::cona => 'cona',
             self::editionhumboldtdigital => 'edition humboldt digital',
             self::gnd => 'gnd',
@@ -190,6 +195,7 @@ enum MDNodaRepository implements MDValueEnumInterface, JsonSerializable {
             self::ackerbau => 'Ackerbau-Thesaurus',
             self::bne => 'Biblioteca Nacional de España (BNE)',
             self::bnf => 'Bibliothèque nationale de France (BNF)',
+            self::col => 'Catalogue of Life',
             self::cona => 'Cultural Objects Name Authority (CONA)',
             self::editionhumboldtdigital => 'Edition Humboldt Digital',
             self::gnd => 'GND (Gemeinsame Normdatei)',
@@ -232,6 +238,7 @@ enum MDNodaRepository implements MDValueEnumInterface, JsonSerializable {
             self::ackerbau  => 'https://term.museum-digital.de/ackerbau/tag/',
             self::bne       => 'http://datos.bne.es/persona/',
             self::bnf       => "https://catalogue.bnf.fr/ark:/12148/cb",
+            self::col       => 'https://www.catalogueoflife.org/data/taxon/',
             self::cona      => 'https://vocab.getty.edu/page/cona/',
             self::editionhumboldtdigital => 'https://edition-humboldt.de/register/personen/detail.xql?normid=http://d-nb.info/gnd/',
             self::gnd       => 'https://d-nb.info/gnd/',
@@ -293,6 +300,7 @@ enum MDNodaRepository implements MDValueEnumInterface, JsonSerializable {
             self::ackerbau  => 'https://term.museum-digital.de/redir.php?search=' . urlencode($searchTerm) . '&kind=tag|ackerbau',
             self::bne       => 'http://datos.bne.es/persona/' . urlencode($searchTerm),
             self::bnf       => 'https://catalogue.bnf.fr/resultats-auteur.do?nomAuteur=' . urlencode($searchTerm) . '+&filtre=1&pageRech=rau',
+            self::col       => 'https://www.catalogueoflife.org/data/search?q=' . urlencode($searchTerm),
             self::cona      => 'http://vocab.getty.edu/page/cona/' . urlencode($searchTerm),
             self::editionhumboldtdigital => 'https://edition-humboldt.de/suche/ergebnisRegistersuche.xql?indexType=&q_text=' . urlencode($searchTerm),
             self::gnd       => 'https://explore.gnd.network/search?term=' . urlencode($searchTerm),
@@ -539,6 +547,24 @@ enum MDNodaRepository implements MDValueEnumInterface, JsonSerializable {
 
     }
 
+    /**
+     * Validates catalogue of life IDs.
+     *
+     * @param string $id ID to validate.
+     *
+     * @return string|false
+     */
+    private static function validateColId(string $id):string|false {
+
+        $id = strtr(trim($id, '/'), [
+            "http://www.catalogueoflife.org/data/taxon/" => "",
+            "https://www.catalogueoflife.org/data/taxon/" => "",
+        ]);
+
+        return preg_match('/^([A-Z0-9]{2}|[A-Z0-9]{3}|[A-Z0-9]{4}|[A-Z0-9]{5})$/', $id) ? $id : false;
+
+    }
+
     /**
      * Validates OrCID IDs.
      *
@@ -692,6 +718,7 @@ enum MDNodaRepository implements MDValueEnumInterface, JsonSerializable {
             self::ackerbau  => self::validateNumericId($id, ['https://term.museum-digital.de/ackerbau/tag/']),
             self::bne       => self::validateBneId($id, ['http://datos.bne.es/persona/', 'https://datos.bne.es/persona/']),
             self::bnf       => self::validateBnfId($id),
+            self::col       => self::validateColId($id),
             self::cona      => self::validateNumericId($id, ['http://vocab.getty.edu/page/cona/', 'https://vocab.getty.edu/page/cona/']),
             self::editionhumboldtdigital => self::validateGndId($id, ['https://edition-humboldt.de/register/personen/detail.xql?normid=http://d-nb.info/gnd/']),
             self::gnd       => self::validateGndId($id, ['http://d-nb.info/gnd/', 'https://d-nb.info/gnd/', 'https://explore.gnd.network/gnd/']),
diff --git a/tests/MDNodaRepositoryTest.php b/tests/MDNodaRepositoryTest.php
index c9f9416..06e93fb 100644
--- a/tests/MDNodaRepositoryTest.php
+++ b/tests/MDNodaRepositoryTest.php
@@ -80,5 +80,10 @@ final class MDNodaRepositoryTest extends TestCase {
         self::assertEquals("land/123", MDNodaRepository::ndp_ikmk->validateId("land/123"));
         self::assertEquals(false, MDNodaRepository::ndp_ikmk->validateId("123123"));
 
+        # Catalogue of Life
+        self::assertEquals(false, MDNodaRepository::col->validateId("123123"));
+        self::assertEquals("C46V", MDNodaRepository::col->validateId("https://www.catalogueoflife.org/data/taxon/C46V"));
+        self::assertEquals("CRLT8", MDNodaRepository::col->validateId("https://www.catalogueoflife.org/data/taxon/CRLT8"));
+
     }
 }