diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index c4444e510..4c8d9e042 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -29,6 +29,9 @@ jobs:
           sudo apt-get install -y -qq libicu-dev
           pip install wheel pyicu
           pip install -e ".[dev]"
+      - name: Run checks for default model
+        run: |
+          python contrib/check_model.py
       - name: Run the tests
         run: |
           make test
diff --git a/contrib/check_model.py b/contrib/check_model.py
new file mode 100644
index 000000000..c086c77a8
--- /dev/null
+++ b/contrib/check_model.py
@@ -0,0 +1,142 @@
+import sys
+from collections import defaultdict
+from followthemoney import model
+
+
+IGNORE_DIVERGENT_TYPES = [
+    "author",
+    "organization",
+    "classification",
+    "gender",
+    "number",
+    "authority",
+    "duration",
+    "cpvCode",
+    "nutsCode",
+    "area",
+    "subject",
+    "sender",
+]
+
+IGNORE_DIVERGENT_LABELS = [
+    "wikidataId",
+    "parent",
+    "holder",
+    "number",
+    "authority",
+    "title",
+    "cpvCode",
+    "nutsCode",
+    "criteria",
+    "procedure",
+    "callForTenders",
+    "ticker",
+]
+
+IGNORE_LABEL_COLLISIONS = [
+    "Description",
+    "Address",
+    "Notes",
+    "Customs declarations",
+    "Country of origin",
+    "Payments received",
+    "Payments made",
+    "Entity",
+    "Passport number",
+    "The language of the translated text",
+    "Responding to",
+    "Document number",
+    "ISIN",
+]
+
+
+def test_divergent_types(by_name):
+    divergent = {}
+
+    for name, props in by_name.items():
+        if len(props) == 1 or name in IGNORE_DIVERGENT_TYPES:
+            continue
+
+        types = set([p.type for p in props])
+        if len(types) > 1:
+            divergent[name] = props
+
+    return divergent
+
+
+def test_divergent_labels(by_name):
+    divergent = {}
+
+    for name, props in by_name.items():
+        if len(props) == 1 or name in IGNORE_DIVERGENT_LABELS:
+            continue
+        
+        labels = set([p.label for p in props])
+        if len(labels) > 1:
+            divergent[name] = props
+
+    return divergent
+
+
+def test_label_collisions(by_label):
+    collisions = {}
+
+    for label, props in by_label.items():
+        if len(props) == 1 or label in IGNORE_LABEL_COLLISIONS:
+            continue
+
+        names = set([p.name for p in props])
+        if len(names) > 1:
+            collisions[label] = props
+
+    return collisions
+
+
+if __name__ == '__main__':
+    by_name = defaultdict(set)
+    by_label = defaultdict(set)
+
+    for schema in model:
+        for prop in schema.properties.values():
+            by_name[prop.name].add(prop)
+            by_label[prop.label].add(prop)
+
+    divergent_types = test_divergent_types(by_name)
+    divergent_labels = test_divergent_labels(by_name)
+    label_collisions = test_label_collisions(by_label)
+
+    failed = False
+
+    if divergent_types:
+        failed = True
+        print("DIVERGENT TYPES\n")
+        for name, props in divergent_types.items():
+            print(f"  {name}:")
+            for prop in props:
+                print(f"  * {prop.qname} - {prop.type.name}")
+            print()
+        print()
+
+    if divergent_labels:
+        failed = True
+        print("DIVERGENT LABELS\n")
+        for name, props in divergent_labels.items():
+            print(f"  {name}:")
+            for prop in props:
+                print(f"  * {prop.qname} - {prop.label}")
+            print()
+        print()
+
+    if label_collisions:
+        failed = True
+        print("COLLIDING LABELS\n")
+        for label, props in label_collisions.items():
+            print(f"  {label}:")
+            for prop in props:
+                print(f"  * {prop.qname}")
+            print()
+
+    if failed:
+        sys.exit(1)
+
+    print("No issues found.")
diff --git a/contrib/collisions.py b/contrib/collisions.py
deleted file mode 100644
index 68525b64e..000000000
--- a/contrib/collisions.py
+++ /dev/null
@@ -1,21 +0,0 @@
-from collections import defaultdict
-from followthemoney import model
-
-by_name = defaultdict(set)
-for schema in model:
-    for prop in schema.properties.values():
-        by_name[prop.name].add(prop)
-
-for props in by_name.values():
-    if len(props) == 1:
-        continue
-
-    types = set([p.type for p in props])
-    if len(types) > 1:
-        print(f"[{props}] divergent types: {types}")
-    
-    labels = set([p.label for p in props])
-    if len(labels) > 1:
-        print(f"[{props}] divergent labels: {labels}")
-
-    # print(props)
\ No newline at end of file