diff --git a/mdx/common-beans.xml b/mdx/common-beans.xml
index 90f7144a..b152868a 100644
--- a/mdx/common-beans.xml
+++ b/mdx/common-beans.xml
@@ -1173,6 +1173,7 @@
                             <ref bean="mdattr_namespace"/>
                             <ref bean="mdrpi_namespace"/>
                             <ref bean="mdui_namespace"/>
+                            <ref bean="remd_namespace"/>
                             <ref bean="saml_namespace"/>
                             <ref bean="shibmd_namespace"/>
                             <ref bean="xenc_namespace"/>
diff --git a/mdx/uk/check_uk_mdattr.xsl b/mdx/uk/check_uk_mdattr.xsl
index a8a0dbcd..3149734b 100644
--- a/mdx/uk/check_uk_mdattr.xsl
+++ b/mdx/uk/check_uk_mdattr.xsl
@@ -63,6 +63,7 @@
 	<xsl:template match="mdattr:EntityAttributes/saml:Attribute
 		[@Name != 'http://macedir.org/entity-category']
 		[@Name != 'http://macedir.org/entity-category-support']
+		[@Name != 'urn:oasis:names:tc:SAML:attribute:assurance-certification']
 		">
 		<xsl:call-template name="error">
 			<xsl:with-param name="m">
@@ -102,5 +103,20 @@
 			</xsl:with-param>
 		</xsl:call-template>
 	</xsl:template>
-	
+
+	<!--
+		Validate assurance certification values.
+	-->
+	<xsl:template match="mdattr:EntityAttributes/saml:Attribute[@Name='urn:oasis:names:tc:SAML:attribute:assurance-certification']
+		/saml:AttributeValue
+		[. != 'https://refeds.org/sirtfi']
+		">
+		<xsl:call-template name="error">
+			<xsl:with-param name="m">
+				<xsl:text>unknown assurance certification URI </xsl:text>
+				<xsl:value-of select="."/>
+			</xsl:with-param>
+		</xsl:call-template>
+	</xsl:template>
+
 </xsl:stylesheet>
diff --git a/mdx/uk/generate.xml b/mdx/uk/generate.xml
index b259957e..618a8db7 100644
--- a/mdx/uk/generate.xml
+++ b/mdx/uk/generate.xml
@@ -119,7 +119,67 @@
             </list>
         </property>
     </bean>
-    
+
+    <!--
+        *****************************************
+        ***                                   ***
+        ***   S I R T F I   H A N D L I N G   ***
+        ***                                   ***
+        *****************************************
+    -->
+
+    <!--
+        Entity attribute matcher for the SIRTFI assurance certification.
+    -->
+    <bean id="SIRTFI.entity.attribute.matcher" parent="MultiPredicateMatcher">
+        <property name="nameFormatPredicate">
+            <bean class="com.google.common.base.Predicates"
+                factory-method="equalTo"
+                c:_="urn:oasis:names:tc:SAML:2.0:attrname-format:uri"
+            />
+        </property>
+        <property name="namePredicate">
+            <bean class="com.google.common.base.Predicates"
+                factory-method="equalTo"
+                c:_="urn:oasis:names:tc:SAML:attribute:assurance-certification"
+            />
+        </property>
+        <property name="valuePredicate">
+            <bean class="com.google.common.base.Predicates"
+                factory-method="equalTo"
+                c:_="https://refeds.org/sirtfi"
+            />
+        </property>
+    </bean>
+
+    <!--
+        Remove the REFEDS metadata namespace.
+    -->
+    <bean id="strip.remd.namespace" parent="NamespaceStrippingStage"
+        p:namespace-ref="remd_namespace"/>
+
+    <!--
+        Strip SIRTFI information.
+    -->
+    <bean id="strip.SIRTFI" parent="CompositeStage">
+        <property name="composedStages">
+            <list>
+                <!-- remove the REFEDS metadata namespace -->
+                <ref bean="strip.remd.namespace"/>
+
+                <!-- remove the SIRTFI entity attribute -->
+                <bean id="entityAttributes" parent="EntityAttributeFilteringStage"
+                    p:whitelisting="false">
+                    <property name="rules">
+                        <list>
+                            <ref bean="SIRTFI.entity.attribute.matcher"/>
+                        </list>
+                    </property>
+                </bean>
+            </list>
+        </property>
+    </bean>
+
     <!--
         *******************************************
         ***                                     ***
@@ -205,6 +265,10 @@
                             <!-- Permit REFEDS R&S category *support* from any eduGAIN participant. -->
                             <bean parent="EntityCategorySupportMatcher"
                                 c:category="http://refeds.org/category/research-and-scholarship"/>
+
+                            <!-- Permit SIRTFI entity attribute from any eduGAIN participant -->
+                            <ref bean="SIRTFI.entity.attribute.matcher"/>
+
                         </list>
                     </property>
                 </bean>
@@ -242,6 +306,11 @@
     <bean id="uk_productionPipeline" parent="SimplePipeline">
         <property name="stages">
             <list>
+                <!--
+                    Remove SIRTFI metadata.
+                -->
+                <ref bean="strip.SIRTFI"/>
+
                 <!--
                     Enforce IdP display name uniqueness before assembling aggregate
                 -->
@@ -299,6 +368,11 @@
     <bean id="uk_wayfPipeline" parent="SimplePipeline">
         <property name="stages">
             <list>
+                <!--
+                    Remove SIRTFI metadata.
+                -->
+                <ref bean="strip.SIRTFI"/>
+
                 <!--
                     Enforce IdP display name uniqueness before assembling aggregate
                 -->
@@ -477,6 +551,11 @@
     <bean id="uk_fallbackPipeline" parent="SimplePipeline">
         <property name="stages">
             <list>
+                <!--
+                    Remove SIRTFI metadata.
+                -->
+                <ref bean="strip.SIRTFI"/>
+
                 <!--
                     Enforce IdP display name uniqueness before assembling aggregate
                 -->
diff --git a/mdx/uk/ns_norm_test.xsl b/mdx/uk/ns_norm_test.xsl
index 23b6bdac..b05bf888 100644
--- a/mdx/uk/ns_norm_test.xsl
+++ b/mdx/uk/ns_norm_test.xsl
@@ -33,6 +33,7 @@
 	xmlns:mdattr="urn:oasis:names:tc:SAML:metadata:attribute"
 	xmlns:mdrpi="urn:oasis:names:tc:SAML:metadata:rpi"
 	xmlns:mdui="urn:oasis:names:tc:SAML:metadata:ui"
+	xmlns:remd="http://refeds.org/metadata"
 	xmlns:saml="urn:oasis:names:tc:SAML:2.0:assertion"
 	xmlns:shibmd="urn:mace:shibboleth:metadata:1.0"
 	xmlns:ukfedlabel="http://ukfederation.org.uk/2006/11/label"
diff --git a/mdx/validation-beans.xml b/mdx/validation-beans.xml
index 1b1f4ea0..3ded8bdf 100644
--- a/mdx/validation-beans.xml
+++ b/mdx/validation-beans.xml
@@ -644,6 +644,7 @@
                 <ref bean="check_saml_strings"/>
                 <ref bean="check_shib_noregscope"/>
                 <ref bean="check_shibboleth"/>
+                <ref bean="check_sirtfi"/>
                 <ref bean="check_sp_tls"/>
                 <ref bean="check_uk_algorithms"/>
                 <ref bean="check_uk_trust"/>