diff --git a/api/v1/aerospikecluster_validating_webhook.go b/api/v1/aerospikecluster_validating_webhook.go
index 5c08d6af..f43a7307 100644
--- a/api/v1/aerospikecluster_validating_webhook.go
+++ b/api/v1/aerospikecluster_validating_webhook.go
@@ -1047,6 +1047,10 @@ func validateNamespaceConfig(
 			return nErr
 		}
 
+		if mErr := validateMRTFields(nsConf); mErr != nil {
+			return mErr
+		}
+
 		if nsStorage, ok := nsConf["storage-engine"]; ok {
 			if nsStorage == nil {
 				return fmt.Errorf(
@@ -1235,6 +1239,29 @@ func validateNamespaceConfig(
 	return nil
 }
 
+func validateMRTFields(nsConf map[string]interface{}) error {
+	mrtField := isMRTFieldSet(nsConf)
+	scEnabled := IsNSSCEnabled(nsConf)
+
+	if !scEnabled && mrtField {
+		return fmt.Errorf("MRT fields are not allowed in non-SC namespace %v", nsConf)
+	}
+
+	return nil
+}
+
+func isMRTFieldSet(nsConf map[string]interface{}) bool {
+	mrtFields := []string{"mrt-duration", "disable-mrt-writes"}
+
+	for _, field := range mrtFields {
+		if _, exists := nsConf[field]; exists {
+			return true
+		}
+	}
+
+	return false
+}
+
 func validateNamespaceReplicationFactor(
 	nsConf map[string]interface{}, clSize int,
 ) error {
diff --git a/test/cluster/strong_consistency_test.go b/test/cluster/strong_consistency_test.go
index 020431fa..42a3cb2d 100644
--- a/test/cluster/strong_consistency_test.go
+++ b/test/cluster/strong_consistency_test.go
@@ -200,6 +200,28 @@ var _ = Describe("SCMode", func() {
 
 			validateRoster(k8sClient, ctx, clusterNamespacedName, scNamespace)
 		})
+
+		It("Should allow MRT fields in SC namespace", func() {
+			aeroCluster := createDummyAerospikeCluster(clusterNamespacedName, 3)
+			racks := getDummyRackConf(1)
+
+			sc1Path := "/test/dev/" + sc1Name
+			aeroCluster.Spec.Storage.Volumes = append(
+				aeroCluster.Spec.Storage.Volumes, getStorageVolumeForAerospike(sc1Name, sc1Path))
+
+			conf := getSCNamespaceConfig(sc1Name, sc1Path)
+			conf["mrt-duration"] = 15
+
+			racks[0].InputAerospikeConfig = &asdbv1.AerospikeConfigSpec{
+				Value: map[string]interface{}{
+					"namespaces": []interface{}{conf},
+				},
+			}
+			aeroCluster.Spec.RackConfig.Racks = racks
+
+			err := deployCluster(k8sClient, ctx, aeroCluster)
+			Expect(err).ToNot(HaveOccurred())
+		})
 	})
 
 	Context("When doing invalid operation", func() {
@@ -322,6 +344,29 @@ var _ = Describe("SCMode", func() {
 			Expect(err).To(HaveOccurred())
 		})
 
+		It("Should not allow MRT fields in non-SC namespace", func() {
+			aeroCluster := createDummyAerospikeCluster(clusterNamespacedName, 3)
+			racks := getDummyRackConf(1)
+
+			sc1Path := "/test/dev/" + sc1Name
+			aeroCluster.Spec.Storage.Volumes = append(
+				aeroCluster.Spec.Storage.Volumes, getStorageVolumeForAerospike(sc1Name, sc1Path))
+
+			conf := getSCNamespaceConfig(sc1Name, sc1Path)
+			conf["strong-consistency"] = false
+			conf["mrt-duration"] = 10
+
+			racks[0].InputAerospikeConfig = &asdbv1.AerospikeConfigSpec{
+				Value: map[string]interface{}{
+					"namespaces": []interface{}{conf},
+				},
+			}
+			aeroCluster.Spec.RackConfig.Racks = racks
+
+			err := deployCluster(k8sClient, ctx, aeroCluster)
+			Expect(err).To(HaveOccurred())
+		})
+
 	})
 })