diff --git a/specifications/build.xml b/specifications/build.xml
index c1075129222aaa183706a74a7daa481aa85db489..6100e32adbbb4fdc0be950ac1250454a71be799f 100644
--- a/specifications/build.xml
+++ b/specifications/build.xml
@@ -17,9 +17,9 @@
 			<fileset dir="." includes="**/*.xsl"/>
 			<fileset dir="." includes="**/Makefile"/>
 			<fileset dir="." includes="**/README.txt"/>
-			<fileset dir="." includes="**/SISO-REF-010-2019*/*"/>
+			<fileset dir="." includes="**/SISO-REF-010-v28/*"/>
 		</delete>
-		<delete verbose="true" failonerror="false" dir="SISO-REF-010-2019 Enumerations v26_files"/>
+		<delete verbose="true" failonerror="false" dir="SISO-REF-010-v28"/>
 	</target>
 	
 	<!-- =============================================== -->
@@ -62,6 +62,7 @@
         <property name="warningMessage" value="Restriction: cookie restrictions prevent automated download.&#10;&#10;You must manually download this file while within NPS campus or firewall.&#10;&#10;For "/>
         <echo message="${warningMessage}IEEE1278.1 retrieval to this location, use your browser to save&#10;&#10;   ${ieeeBaseLinkUrl}${DIS.1.document}"
                  file="${DIS.1.rename}.SAVEME"/>
+        <echo message=""/>
 		
 		<!-- ======================== -->
 		<property name="DIS.2.document" value="7459689"/>
@@ -74,6 +75,7 @@
                 dest="${DIS.2.rename}" verbose="true"/> -->
         <echo message="${warningMessage}IEEE1278.2 retrieval to this location, use your browser to save&#10;&#10;   ${ieeeBaseLinkUrl}${DIS.2.document}"
                  file="${DIS.2.rename}"/>
+        <echo message=""/>
 		
 		<!-- ======================== -->
 		<property name="DIS.3.document" value="587529"/>
@@ -86,6 +88,7 @@
                 dest="${DIS.3.rename}" verbose="true"/> -->
         <echo message="${warningMessage}IEEE1278.3 retrieval to this location, use your browser to save&#10;&#10;   ${ieeeBaseLinkUrl}${DIS.3.document}"
                  file="${DIS.3.rename}"/>
+        <echo message=""/>
 		
 		<!-- ======================== -->
 		<property name="DIS.4.document" value="8685803"/>
@@ -153,21 +156,26 @@
     <property name="sisoBaseUrl" value="https://www.sisostds.org/DigitalLibrary.aspx?Command=Core_Download&amp;EntryId="/>
 	
 	<target name="download.SISO">
-		
-		<property name="SISO-REF-010" value="SISO-REF-010-v26.zip"/>
-		<echo message="get ${SISO-REF-010}"/>
-        <get     src="${sisoBaseUrl}46171"
-                dest="${SISO-REF-010}" verbose="true"/>
-		<unzip   src="${SISO-REF-010}"
-		        dest="" overwrite="true"/>
-		<delete file="${SISO-REF-010}"/>
+		<property name="SISO-REF-010"       value="SISO-REF-010-v28"/>
+        <delete dir="${SISO-REF-010}" failonerror="false"/>
+        <mkdir  dir="${SISO-REF-010}"/>
+ 		<echo message="get ${SISO-REF-010}.zip from"/>
+		<echo message="    ${sisoBaseUrl}51787"/>
+        <get     src="${sisoBaseUrl}51787" 
+                dest="${SISO-REF-010}.zip" verbose="true"/>
+		<unzip   src="${SISO-REF-010}.zip"
+		        dest="${SISO-REF-010}" overwrite="true"/>
+		<delete file="${SISO-REF-010}.zip"/><!-- no longer needed -->
         
-		<!-- duplicative, already contained in preceding zip
+		<!-- ensure not duplicative and already contained in preceding zip -->
 		<property name="SISO-REF-010.1" value="SISO-REF-010.1-2019 Operations Manual for EWG V08.pdf"/>
-		<echo message="get ${SISO-REF-010.1}"/>
-        <get     src="${sisoBaseUrl}46173"
-                dest="${SISO-REF-010.1}" verbose="true"/>
-        -->
+		<echo message="get  ${SISO-REF-010.1}"/>
+		<echo message="from ${sisoBaseUrl}47284"/>
+		<echo message="as   ${SISO-REF-010}/${SISO-REF-010.1}"/>
+        <get     src="${sisoBaseUrl}47284"
+                dest="${SISO-REF-010}" verbose="true"/>
+        <echo message="fix download filename"/>
+        <move file="${SISO-REF-010}/DigitalLibrary.aspx" tofile="${SISO-REF-010}/${SISO-REF-010.1}" overwrite="true" verbose="true"/>
 
 	</target>