diff --git a/README.md b/README.md
index fada09e5..c822b58b 100644
--- a/README.md
+++ b/README.md
@@ -201,6 +201,7 @@ I hope that with the introduction of PINT, the versioning problem will be solved
     * Added Peppol PINT JP Self Billing 1.0.1 release
     * Deprecated Simplerinvoicing Invoice 2.0.3.8, Simplerinvoicing 2.0 G-Account extension 1.0.8 and NLCIUS-CII 1.0.3.7
     * Added Simplerinvoicing Invoice 2.0.3.10, Simplerinvoicing 2.0 G-Account extension 1.0.10 and NLCIUS-CII 1.0.3.9
+    * Added support for CII D22B XML Schema validation
 * v3.2.1 - 2024-10-09
     * Added support for EN 16931 rules v1.3.13 format and deprecated v1.3.11
 * v3.2.0 - 2024-09-16
diff --git a/phive-rules-cii/pom.xml b/phive-rules-cii/pom.xml
index 694ad5aa..59873550 100644
--- a/phive-rules-cii/pom.xml
+++ b/phive-rules-cii/pom.xml
@@ -59,6 +59,11 @@
       <artifactId>ph-cii-d16b</artifactId>
       <version>${ph-cii.version}</version>
     </dependency>
+    <dependency>
+      <groupId>com.helger.cii</groupId>
+      <artifactId>ph-cii-d22b</artifactId>
+      <version>${ph-cii.version}</version>
+    </dependency>
     <dependency>
       <groupId>com.helger.phive.rules</groupId>
       <artifactId>phive-rules-api</artifactId>
diff --git a/phive-rules-cii/src/main/java/com/helger/phive/cii/CIIValidation.java b/phive-rules-cii/src/main/java/com/helger/phive/cii/CIIValidation.java
index feaf6096..aa924104 100644
--- a/phive-rules-cii/src/main/java/com/helger/phive/cii/CIIValidation.java
+++ b/phive-rules-cii/src/main/java/com/helger/phive/cii/CIIValidation.java
@@ -20,6 +20,7 @@
 import javax.annotation.concurrent.Immutable;
 
 import com.helger.cii.d16b.CCIID16B;
+import com.helger.cii.d22b.CCIID22B;
 import com.helger.commons.ValueEnforcer;
 import com.helger.diver.api.coord.DVRCoordinate;
 import com.helger.phive.api.executorset.IValidationExecutorSetRegistry;
@@ -38,20 +39,38 @@ public final class CIIValidation
 {
   public static final String GROUP_ID = "un.unece.uncefact";
   public static final String VERSION_D16B = "D16B";
+  public static final String VERSION_D22B = "D22B";
 
   public static final DVRCoordinate VID_CII_D16B_CROSSINDUSTRYINVOICE = PhiveRulesHelper.createCoordinate (GROUP_ID,
                                                                                                            "crossindustryinvoice",
                                                                                                            VERSION_D16B);
+  public static final DVRCoordinate VID_CII_D22B_CROSSINDUSTRYINVOICE = PhiveRulesHelper.createCoordinate (GROUP_ID,
+                                                                                                           "crossindustryinvoice",
+                                                                                                           VERSION_D22B);
 
   private CIIValidation ()
   {}
 
+  /**
+   * Register all supported CII validation execution sets to the provided
+   * registry.
+   *
+   * @param aRegistry
+   *        The registry to add the artefacts to. May not be <code>null</code>.
+   * @since 3.2.2
+   */
+  public static void initCII (@Nonnull final IValidationExecutorSetRegistry <IValidationSourceXML> aRegistry)
+  {
+    initCIID16B (aRegistry);
+    initCIID22B (aRegistry);
+  }
+
   /**
    * Register all standard CII D16B validation execution sets to the provided
    * registry.
    *
    * @param aRegistry
-   *        The registry to add the artefacts. May not be <code>null</code>.
+   *        The registry to add the artefacts to. May not be <code>null</code>.
    */
   public static void initCIID16B (@Nonnull final IValidationExecutorSetRegistry <IValidationSourceXML> aRegistry)
   {
@@ -65,4 +84,25 @@ public static void initCIID16B (@Nonnull final IValidationExecutorSetRegistry <I
                                                                            PhiveRulesHelper.createSimpleStatus (bNotDeprecated),
                                                                            ValidationExecutorXSD.create (CCIID16B.getXSDResource ())));
   }
+
+  /**
+   * Register all standard CII D22B validation execution sets to the provided
+   * registry.
+   *
+   * @param aRegistry
+   *        The registry to add the artefacts to. May not be <code>null</code>.
+   * @since 3.2.2
+   */
+  public static void initCIID22B (@Nonnull final IValidationExecutorSetRegistry <IValidationSourceXML> aRegistry)
+  {
+    ValueEnforcer.notNull (aRegistry, "Registry");
+
+    final boolean bNotDeprecated = false;
+
+    // No Schematrons here
+    aRegistry.registerValidationExecutorSet (ValidationExecutorSet.create (VID_CII_D22B_CROSSINDUSTRYINVOICE,
+                                                                           "CII CrossIndustryInvoice " + VERSION_D22B,
+                                                                           PhiveRulesHelper.createSimpleStatus (bNotDeprecated),
+                                                                           ValidationExecutorXSD.create (CCIID22B.getXSDResource ())));
+  }
 }
diff --git a/phive-rules-cii/src/test/java/com/helger/phive/cii/mock/CTestFiles.java b/phive-rules-cii/src/test/java/com/helger/phive/cii/mock/CTestFiles.java
index 9eef6c84..fc120ec2 100644
--- a/phive-rules-cii/src/test/java/com/helger/phive/cii/mock/CTestFiles.java
+++ b/phive-rules-cii/src/test/java/com/helger/phive/cii/mock/CTestFiles.java
@@ -40,7 +40,7 @@ public final class CTestFiles
   public static final ValidationExecutorSetRegistry <IValidationSourceXML> VES_REGISTRY = new ValidationExecutorSetRegistry <> ();
   static
   {
-    CIIValidation.initCIID16B (VES_REGISTRY);
+    CIIValidation.initCII (VES_REGISTRY);
   }
 
   private CTestFiles ()
@@ -51,7 +51,8 @@ private CTestFiles ()
   public static ICommonsList <PhiveTestFile> getAllTestFiles ()
   {
     final ICommonsList <PhiveTestFile> ret = new CommonsArrayList <> ();
-    for (final DVRCoordinate aESID : new DVRCoordinate [] { CIIValidation.VID_CII_D16B_CROSSINDUSTRYINVOICE })
+    for (final DVRCoordinate aESID : new DVRCoordinate [] { CIIValidation.VID_CII_D16B_CROSSINDUSTRYINVOICE,
+                                                            CIIValidation.VID_CII_D22B_CROSSINDUSTRYINVOICE })
       for (final IReadableResource aRes : getAllMatchingTestFiles (aESID))
       {
         assertTrue ("Not existing test file: " + aRes.getPath (), aRes.exists ());
@@ -70,6 +71,10 @@ public static ICommonsList <? extends IReadableResource> getAllMatchingTestFiles
     {
       return new CommonsArrayList <> (CIITestFiles.D16B_FILES, ClassPathResource::new);
     }
+    if (aVESID.equals (CIIValidation.VID_CII_D22B_CROSSINDUSTRYINVOICE))
+    {
+      return new CommonsArrayList <> (CIITestFiles.D22B_FILES, ClassPathResource::new);
+    }
 
     throw new IllegalArgumentException ("Invalid VESID: " + aVESID);
   }
diff --git a/pom.xml b/pom.xml
index db5b2530..e8502411 100644
--- a/pom.xml
+++ b/pom.xml
@@ -67,7 +67,7 @@
     <jaxb-plugin.artifact>jaxb-maven-plugin</jaxb-plugin.artifact>
     <jaxb-plugin.version>4.0.8</jaxb-plugin.version>
     <peppol-commons.version>9.6.0</peppol-commons.version>
-    <ph-cii.version>3.0.2</ph-cii.version>
+    <ph-cii.version>3.1.0</ph-cii.version>
     <ph-ebinterface.version>7.1.0</ph-ebinterface.version>
     <ph-fatturapa.version>2.0.2</ph-fatturapa.version>
     <ph-jaxb-plugin.version>4.0.3</ph-jaxb-plugin.version>