diff --git a/ram/metadata/admin.py b/ram/metadata/admin.py
index 8e5602e..7ac1786 100644
--- a/ram/metadata/admin.py
+++ b/ram/metadata/admin.py
@@ -20,8 +20,8 @@ class PropertyAdmin(admin.ModelAdmin):
 @admin.register(Decoder)
 class DecoderAdmin(admin.ModelAdmin):
     readonly_fields = ("image_thumbnail",)
-    list_display = ("__str__", "interface")
-    list_filter = ("manufacturer", "interface")
+    list_display = ("__str__", "sound")
+    list_filter = ("manufacturer", "sound")
     search_fields = ("name", "manufacturer__name")
 
 
diff --git a/ram/metadata/migrations/0008_remove_decoder_interface.py b/ram/metadata/migrations/0008_remove_decoder_interface.py
new file mode 100644
index 0000000..c1372cd
--- /dev/null
+++ b/ram/metadata/migrations/0008_remove_decoder_interface.py
@@ -0,0 +1,18 @@
+# Generated by Django 4.1.2 on 2022-10-31 23:01
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("metadata", "0007_rename_track_scale_tracks"),
+        ("roster", "0013_rollingstock_decoder_interface"),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name="decoder",
+            name="interface",
+        ),
+    ]
diff --git a/ram/metadata/models.py b/ram/metadata/models.py
index 6c89bfd..039ea01 100644
--- a/ram/metadata/models.py
+++ b/ram/metadata/models.py
@@ -66,9 +66,6 @@ class Decoder(models.Model):
         limit_choices_to={"category": "model"},
     )
     version = models.CharField(max_length=64, blank=True)
-    interface = models.PositiveSmallIntegerField(
-        choices=settings.DECODER_INTERFACES, null=True, blank=True
-    )
     sound = models.BooleanField(default=False)
     image = models.ImageField(upload_to="images/", null=True, blank=True)
 
diff --git a/ram/portal/templates/page.html b/ram/portal/templates/page.html
index 807d41b..02b8307 100644
--- a/ram/portal/templates/page.html
+++ b/ram/portal/templates/page.html
@@ -102,7 +102,7 @@
                       </tr>
                     </tbody>
                   </table>
-                  {% if rolling_stock.decoder %}
+                  {% if rolling_stock.decoder or rolling_stock.decoder_interface %}
                   <table class="table table-striped">
                     <thead>
                       <tr>
@@ -111,13 +111,19 @@
                     </thead>
                     <tbody>
                       <tr>
-                        <th width="35%" scope="row">Decoder</th>
+                        <th width="35%" scope="row">Interface</th>
+                        <td>{{ rolling_stock.get_decoder_interface_display }}</td>
+                      </tr>
+                      {% if rolling_stock.decoder %}
+                      <tr>
+                        <th scope="row">Decoder</th>
                         <td>{{ rolling_stock.decoder }}</td>
                       </tr>
                       <tr>
                         <th scope="row">Address</th>
                         <td>{{ rolling_stock.address }}</td>
                       </tr>
+                      {% endif %}
                     </tbody>
                   </table>
                   {% endif %}
@@ -230,6 +236,10 @@
                       </tr>
                     </thead>
                     <tbody>
+                      <tr>
+                        <th scope="row">Interface</th>
+                        <td>{{ rolling_stock.get_decoder_interface_display }}</td>
+                      </tr>
                       <tr>
                         <th width="35%" scope="row">Address</th>
                         <td>{{ rolling_stock.address }}</td>
@@ -246,10 +256,6 @@
                         <th scope="row">Version</th>
                         <td>{{ rolling_stock.decoder.version }}</td>
                       </tr>
-                      <tr>
-                        <th scope="row">Interface</th>
-                        <td>{{ rolling_stock.decoder.get_interface_display }}</td>
-                      </tr>
                       <tr>
                         <th scope="row">Sound</th>
                         <td>{{ rolling_stock.decoder.sound | yesno:"Yes,No" }}</td>
diff --git a/ram/ram/__init__.py b/ram/ram/__init__.py
index 9a58813..9b3fc78 100644
--- a/ram/ram/__init__.py
+++ b/ram/ram/__init__.py
@@ -1,4 +1,4 @@
 from ram.utils import git_suffix
 
-__version__ = "0.0.19"
+__version__ = "0.0.20"
 __version__ += git_suffix(__file__)
diff --git a/ram/roster/admin.py b/ram/roster/admin.py
index a12ce43..ba7a916 100644
--- a/ram/roster/admin.py
+++ b/ram/roster/admin.py
@@ -148,6 +148,7 @@ class RollingStockAdmin(admin.ModelAdmin):
             "DCC",
             {
                 "fields": (
+                    "decoder_interface",
                     "decoder",
                     "address",
                 )
diff --git a/ram/roster/migrations/0013_rollingstock_decoder_interface.py b/ram/roster/migrations/0013_rollingstock_decoder_interface.py
new file mode 100644
index 0000000..d499fcb
--- /dev/null
+++ b/ram/roster/migrations/0013_rollingstock_decoder_interface.py
@@ -0,0 +1,42 @@
+# Generated by Django 4.1 on 2022-10-31 22:27
+
+from django.db import migrations, models
+
+
+def meta_to_roster(apps, schema_editor):
+    model = apps.get_model("roster", "RollingStock")
+
+    for row in model.objects.all():
+        if row.decoder:
+            decoder_interface = row.decoder.interface
+            row.__dict__["decoder_interface"] = decoder_interface
+            row.save(update_fields=["decoder_interface"])
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("roster", "0012_rollingstockjournal"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="rollingstock",
+            name="decoder_interface",
+            field=models.PositiveSmallIntegerField(
+                blank=True,
+                choices=[
+                    (1, "NEM651"),
+                    (2, "NEM652"),
+                    (3, "PluX"),
+                    (4, "21MTC"),
+                    (5, "Next18/Next18S"),
+                ],
+                null=True,
+            ),
+        ),
+        migrations.RunPython(
+            meta_to_roster,
+            reverse_code=migrations.RunPython.noop
+        ),
+    ]
diff --git a/ram/roster/models.py b/ram/roster/models.py
index dae9663..c42234c 100644
--- a/ram/roster/models.py
+++ b/ram/roster/models.py
@@ -3,6 +3,7 @@ import re
 from uuid import uuid4
 from django.db import models
 from django.urls import reverse
+from django.conf import settings
 from django.dispatch import receiver
 from django.utils.safestring import mark_safe
 
@@ -87,6 +88,9 @@ class RollingStock(models.Model):
     )
     scale = models.ForeignKey(Scale, on_delete=models.CASCADE)
     sku = models.CharField(max_length=32, blank=True)
+    decoder_interface = models.PositiveSmallIntegerField(
+        choices=settings.DECODER_INTERFACES, null=True, blank=True
+    )
     decoder = models.ForeignKey(
         Decoder, on_delete=models.CASCADE, null=True, blank=True
     )