diff --git a/openstack_governance/_check_schema.py b/openstack_governance/_check_schema.py
new file mode 100644
index 000000000..eb479eec9
--- /dev/null
+++ b/openstack_governance/_check_schema.py
@@ -0,0 +1,47 @@
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+"""Verify that all data files match the schema."""
+
+import argparse
+import pkgutil
+
+import jsonschema
+
+from openstack_governance import yamltools
+
+
+_yaml = yamltools.YAML()
+
+_PROJECTS_SCHEMA = _yaml.load(
+    pkgutil.get_data('openstack_governance',
+                     'projects_schema.yaml').decode('utf-8')
+)
+
+
+def main():
+    parser = argparse.ArgumentParser()
+    parser.parse_args()
+
+    errors = []
+
+    with open('reference/projects.yaml', 'r', encoding='utf-8') as f:
+        all_projects = _yaml.load(f.read())
+
+    validator = jsonschema.Draft4Validator(_PROJECTS_SCHEMA)
+
+    errors = False
+    for e in validator.iter_errors(all_projects):
+        errors = True
+        print(e)
+
+    return 1 if errors else 0
diff --git a/openstack_governance/projects_schema.yaml b/openstack_governance/projects_schema.yaml
new file mode 100644
index 000000000..9773c6faf
--- /dev/null
+++ b/openstack_governance/projects_schema.yaml
@@ -0,0 +1,95 @@
+---
+$schema: "http://json-schema.org/schema#"
+$id: "https://opendev.org/openstack/releases/src/branch/master/README.rst"
+
+
+additionalProperties:
+  # Do not allow any properties not defined here. This lets us catch
+  # typos.
+  additionalProperties: false
+  required:
+    - ptl
+    - deliverables
+  properties:
+    ptl:
+      type: "object"
+      required:
+        - name
+        - email
+      additionalProperties: false
+      properties:
+        name:
+          type: "string"
+        irc:
+          type: "string"
+        email:
+          type: "string"
+          format: "email"
+    appointed:
+      type: "array"
+      items:
+        type: "string"
+    irc-channel:
+      type: "string"
+    service:
+      type: "string"
+    url:
+      type: "string"
+    liaisons:
+      type: "array"
+      uniqueItems: true
+      items:
+        type: "string"
+    mission:
+      type: "string"
+    deliverables:
+      type: "object"
+      additionalProperties:
+        type: "object"
+        required:
+          - repos
+        additionalProperties: false
+        properties:
+          repos:
+            type: "array"
+            items:
+              type: "string"
+              pattern: "^[^/]+/[^/]+$"
+            minItems: 1
+            uniqueItems: true
+          tags:
+            type: "array"
+            items:
+              type: "string"
+          release-management:
+            type: "string"
+            enum:
+              - none
+              - deprecated
+              - external
+    tags:
+      type: "array"
+      items:
+        type: "string"
+    extra-atcs:
+      type: "array"
+      items:
+        type: "object"
+        required:
+          - name
+          - email
+          - expires-in
+        additionalProperties: false
+        properties:
+          name:
+            type: "string"
+          email:
+            type: "string"
+            format: "email"
+          expires-in:
+            type: "string"
+            pattern: >-
+              ^(January |February |March |April |May |June |July |August
+              |September |October |November |December )2[0-9]{3}$
+          comment:
+            type: "string"
diff --git a/requirements.txt b/requirements.txt
index 077beb729..8dddd4d07 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,4 +6,5 @@ PyYAML>=3.1.0
 six>=1.9.0
 yamlordereddictloader
 mwclient==0.8.1
-ruamel.yaml
\ No newline at end of file
+ruamel.yaml
+jsonschema>=2.6.0
diff --git a/setup.cfg b/setup.cfg
index e7a78b9f3..b569f516d 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -22,4 +22,8 @@ warning-is-error = 1
 warnerrors = True
 
 [flake8]
-ignore = E501,E226,H405
\ No newline at end of file
+ignore = E501,E226,H405
+
+[entry_points]
+console_scripts =
+    osg-check-schema = openstack_governance._check_schema:main
diff --git a/tox.ini b/tox.ini
index c9d365f0b..b7c1daacf 100644
--- a/tox.ini
+++ b/tox.ini
@@ -27,6 +27,7 @@ commands =
 basepython = python3
 whitelist_externals = bash
 commands =
+  osg-check-schema
   bash -c "find {toxinidir}        \
             \( -name .tox -prune \)         \
             -o -type f -name '*.yaml'       \