diff --git a/SLUB_mediaconch_policy_retrodigitized_film16mm.xml b/SLUB_mediaconch_policy_retrodigitized_film16mm.xml
index 5be116fdfdc2122be25e4f594f9b4d92f2add9ac..89212c7f660b4279da2156acb938f88e9b1c73c5 100644
--- a/SLUB_mediaconch_policy_retrodigitized_film16mm.xml
+++ b/SLUB_mediaconch_policy_retrodigitized_film16mm.xml
@@ -59,6 +59,7 @@
         </policy>
         <rule name="Video/PixelAspectRatio is 1.000" value="PixelAspectRatio" tracktype="Video" occurrence="*" operator="=">1.000</rule>
         <rule name="ColorSpace is RGB" value="ColorSpace" tracktype="Video" occurrence="*" operator="=">RGB</rule>
+        <rule name="Chroma Subsampling is 4:4:4" value="ChromaSubsampling" tracktype="Video" occurrence="*" operator="=">4:4:4</rule>
         <rule name="Bit Depth is 16" value="BitDepth" tracktype="Video" occurrence="*" operator="=">16</rule>
       </policy>
     </policy>
diff --git a/SLUB_mediaconch_policy_retrodigitized_film35mm.xml b/SLUB_mediaconch_policy_retrodigitized_film35mm.xml
index 88aa99ea918fc7773b8b1938a945051241835859..102ecc82a883ca87ff52c3049f871b02c31f18aa 100644
--- a/SLUB_mediaconch_policy_retrodigitized_film35mm.xml
+++ b/SLUB_mediaconch_policy_retrodigitized_film35mm.xml
@@ -68,6 +68,7 @@
         </policy>
         <rule name="Video/PixelAspectRatio is 1.000" value="PixelAspectRatio" tracktype="Video" occurrence="*" operator="=">1.000</rule>
         <rule name="ColorSpace is RGB" value="ColorSpace" tracktype="Video" occurrence="*" operator="=">RGB</rule>
+        <rule name="Chroma Subsampling is 4:4:4" value="ChromaSubsampling" tracktype="Video" occurrence="*" operator="=">4:4:4</rule>
         <rule name="Bit Depth is 16" value="BitDepth" tracktype="Video" occurrence="*" operator="=">16</rule>
         
       </policy>
diff --git a/SLUB_mediaconch_policy_retrodigitized_film8mm.xml b/SLUB_mediaconch_policy_retrodigitized_film8mm.xml
index 48091e7b8e63d4bc034f74f6e4ca9c92776d6e69..0a1f0fb9157f290379eae7365d7aaa9c4853379a 100644
--- a/SLUB_mediaconch_policy_retrodigitized_film8mm.xml
+++ b/SLUB_mediaconch_policy_retrodigitized_film8mm.xml
@@ -49,10 +49,14 @@
         <policy type="or" name="YUV or RGB">
           <policy type="and" name="YUV">
             <rule name="ColorSpace is YUV" value="ColorSpace" tracktype="Video" occurrence="*" operator="=">YUV</rule>
-            <rule name="Chroma Subsampling is 4:4:4" value="ChromaSubsampling" tracktype="Video" occurrence="*" operator="=">4:4:4</rule>
+            <policy type="or" name="ChromaSubsampling">
+              <rule name="4:4:4" value="ChromaSubsampling" tracktype="Video" occurrence="*" operator="=">4:4:4</rule>
+              <rule name="4:2:2" value="ChromaSubsampling" tracktype="Video" occurrence="*" operator="=">4:2:2</rule>
+            </policy>
           </policy>
           <policy type="and" name="RGB">
             <rule name="ColorSpace is RGB" value="ColorSpace" tracktype="Video" occurrence="*" operator="=">RGB</rule>
+            <rule name="Chroma Subsampling is 4:4:4" value="ChromaSubsampling" tracktype="Video" occurrence="*" operator="=">4:4:4</rule>
           </policy>
         </policy>
         <rule name="Bit Depth is 16" value="BitDepth" tracktype="Video" occurrence="*" operator="=">16</rule>