diff --git a/build/master_ukfederation.xsl b/build/master_ukfederation.xsl
index f674bf12..f80ebb4a 100644
--- a/build/master_ukfederation.xsl
+++ b/build/master_ukfederation.xsl
@@ -4,7 +4,7 @@
 	master_ukfederation.xsl
 	
 	XSL stylesheet that takes a SAML 2.0 metadata master file containing
-	a trust fabric and optional entities, and makes a UK Federation
+	a trust fabric and optional entities, and makes a UK federation
 	master file by tweaking appropriately and inserting the combined
 	entities file.  The entities from the combined entities file are
 	also transformed in various ways here.
@@ -21,26 +21,9 @@
 	xmlns:wayf="http://sdss.ac.uk/2006/06/WAYF"
 	xmlns:uklabel="http://ukfederation.org.uk/2006/11/label"
 	xmlns:members="http://ukfederation.org.uk/2007/01/members"
-	xmlns:date="http://exslt.org/dates-and-times"
 	xmlns="urn:oasis:names:tc:SAML:2.0:metadata"
 	exclude-result-prefixes="wayf members">
 
-	<xsl:variable name="now" select="date:date-time()"/>
-
-	<!--
-		Add a comment to the start of the output file.
-	-->
-	<xsl:template match="/">
-		<xsl:comment>
-			<xsl:text>&#10;&#9;U K   F E D E R A T I O N   M E T A D A T A&#10;</xsl:text>
-			<xsl:text>&#10;</xsl:text>
-			<xsl:text>&#9;Aggregate built </xsl:text>
-			<xsl:value-of select="$now"/>
-			<xsl:text>&#10;</xsl:text>
-		</xsl:comment>
-	    <xsl:apply-templates/>
-	</xsl:template>
-
 	<!--Force UTF-8 encoding for the output.-->
 	<xsl:output omit-xml-declaration="no" method="xml" encoding="UTF-8" indent="yes"/>
 
diff --git a/build/uk_master_export.xsl b/build/uk_master_export.xsl
index 533893b7..330658df 100644
--- a/build/uk_master_export.xsl
+++ b/build/uk_master_export.xsl
@@ -19,12 +19,31 @@
 	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 	xmlns:wayf="http://sdss.ac.uk/2006/06/WAYF"
 	xmlns:uklabel="http://ukfederation.org.uk/2006/11/label"
+	xmlns:date="http://exslt.org/dates-and-times"
 	xmlns="urn:oasis:names:tc:SAML:2.0:metadata"
 	exclude-result-prefixes="wayf">
 
 	<!--Force UTF-8 encoding for the output.-->
 	<xsl:output omit-xml-declaration="no" method="xml" encoding="UTF-8" indent="yes"/>
 
+	<xsl:variable name="now" select="date:date-time()"/>
+	
+	<!--
+		Add a comment to the start of the output file.
+	-->
+	<xsl:template match="/">
+		<xsl:comment>
+			<xsl:text>&#10;&#9;U K   F E D E R A T I O N   M E T A D A T A&#10;</xsl:text>
+			<xsl:text>&#10;</xsl:text>
+			<xsl:text>&#9;*** Prototype export metadata; not for production use ***&#10;</xsl:text>
+			<xsl:text>&#10;</xsl:text>
+			<xsl:text>&#9;Aggregate built </xsl:text>
+			<xsl:value-of select="$now"/>
+			<xsl:text>&#10;</xsl:text>
+		</xsl:comment>
+		<xsl:apply-templates/>
+	</xsl:template>
+	
 	<!--
 		Strip uklabel:Software elements entirely.
 	-->
diff --git a/build/uk_master_test.xsl b/build/uk_master_test.xsl
index d49b3b59..3a49cd59 100644
--- a/build/uk_master_test.xsl
+++ b/build/uk_master_test.xsl
@@ -20,12 +20,31 @@
 	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 	xmlns:wayf="http://sdss.ac.uk/2006/06/WAYF"
 	xmlns:uklabel="http://ukfederation.org.uk/2006/11/label"
+	xmlns:date="http://exslt.org/dates-and-times"
 	xmlns="urn:oasis:names:tc:SAML:2.0:metadata"
 	exclude-result-prefixes="wayf">
 
 	<!--Force UTF-8 encoding for the output.-->
 	<xsl:output omit-xml-declaration="no" method="xml" encoding="UTF-8" indent="yes"/>
 
+	<xsl:variable name="now" select="date:date-time()"/>
+	
+	<!--
+		Add a comment to the start of the output file.
+	-->
+	<xsl:template match="/">
+		<xsl:comment>
+			<xsl:text>&#10;&#9;U K   F E D E R A T I O N   M E T A D A T A&#10;</xsl:text>
+			<xsl:text>&#10;</xsl:text>
+			<xsl:text>&#9;*** Feature test metadata; not for production use ***&#10;</xsl:text>
+			<xsl:text>&#10;</xsl:text>
+			<xsl:text>&#9;Aggregate built </xsl:text>
+			<xsl:value-of select="$now"/>
+			<xsl:text>&#10;</xsl:text>
+		</xsl:comment>
+		<xsl:apply-templates/>
+	</xsl:template>
+	
 	<!--
 		Strip uklabel:Software elements entirely.
 	-->
diff --git a/build/uk_master_unsigned.xsl b/build/uk_master_unsigned.xsl
index d5c9722e..42bc3e6f 100644
--- a/build/uk_master_unsigned.xsl
+++ b/build/uk_master_unsigned.xsl
@@ -17,12 +17,29 @@
 	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 	xmlns:wayf="http://sdss.ac.uk/2006/06/WAYF"
 	xmlns:uklabel="http://ukfederation.org.uk/2006/11/label"
+	xmlns:date="http://exslt.org/dates-and-times"
 	xmlns="urn:oasis:names:tc:SAML:2.0:metadata"
 	exclude-result-prefixes="wayf">
 
 	<!--Force UTF-8 encoding for the output.-->
 	<xsl:output omit-xml-declaration="no" method="xml" encoding="UTF-8" indent="yes"/>
 
+	<xsl:variable name="now" select="date:date-time()"/>
+	
+	<!--
+		Add a comment to the start of the output file.
+	-->
+	<xsl:template match="/">
+		<xsl:comment>
+			<xsl:text>&#10;&#9;U K   F E D E R A T I O N   M E T A D A T A&#10;</xsl:text>
+			<xsl:text>&#10;</xsl:text>
+			<xsl:text>&#9;Aggregate built </xsl:text>
+			<xsl:value-of select="$now"/>
+			<xsl:text>&#10;</xsl:text>
+		</xsl:comment>
+		<xsl:apply-templates/>
+	</xsl:template>
+	
 	<!--
 		Strip uklabel:Software elements entirely.
 	-->