diff --git a/.github/workflows/data-review-issue.yml b/.github/workflows/data-review-issue.yml
new file mode 100644
index 00000000..919c41b7
--- /dev/null
+++ b/.github/workflows/data-review-issue.yml
@@ -0,0 +1,65 @@
+name: Data Review Issue
+on:
+  schedule:
+    - cron: 5 4 1 1,5,9 *
+  workflow_dispatch:
+
+
+jobs:
+  create_issue:
+    name: Create data review issue
+    runs-on: ubuntu-latest
+    permissions:
+      issues: write
+    steps:
+      - name: Create data review issue
+        run: |
+          if [[ $CLOSE_PREVIOUS == true ]]; then
+            previous_issue_number=$(gh issue list \
+              --label "$LABELS" \
+              --json number \
+              --jq '.[0].number')
+            if [[ -n $previous_issue_number ]]; then
+              gh issue close "$previous_issue_number"
+              gh issue unpin "$previous_issue_number"
+            fi
+          fi
+          new_issue_url=$(gh issue create \
+            --title "$TITLE" \
+            --label "$LABELS" \
+            --body "$BODY")
+          if [[ $PINNED == true ]]; then
+            gh issue pin "$new_issue_url"
+          fi
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GH_REPO: ${{ github.repository }}
+          TITLE: Data Review - $(date +'%B %Y')
+          LABELS: data review, autogenerated
+          BODY: |
+            ## Data to be reviewed
+
+            - [ ] Degrees
+              - [ ] Grades
+              - [ ] Institutions
+              - [ ] Subjects
+              - [ ] Types
+            - [ ] DQT
+              - [ ] Degree Types
+            - [ ] Equality and Diversity
+              - [ ] Disabilities
+            - [ ] HESA
+              - [ ] Domiciles
+            - [ ] ITT
+              - [ ] Cycles
+              - [ ] Incentives
+              - [ ] Subjects
+            - [ ] Age Ranges
+            - [ ] Bank Holidays
+            - [ ] CAH (Common Aggregation Hierarchy)
+            - [ ] Countries and Territories
+            - [ ] Qualifications
+            - [ ] Subject Specialisms
+
+          PINNED: true
+          CLOSE_PREVIOUS: true
diff --git a/lib/dfe/reference_data/age_ranges.rb b/lib/dfe/reference_data/age_ranges.rb
index 1e392869..c726a8f5 100644
--- a/lib/dfe/reference_data/age_ranges.rb
+++ b/lib/dfe/reference_data/age_ranges.rb
@@ -1,3 +1,5 @@
+# last reviewed at: unknown
+
 module DfE
   module ReferenceData
     module AgeRanges
diff --git a/lib/dfe/reference_data/bank_holidays.rb b/lib/dfe/reference_data/bank_holidays.rb
index a6889110..29326cd8 100644
--- a/lib/dfe/reference_data/bank_holidays.rb
+++ b/lib/dfe/reference_data/bank_holidays.rb
@@ -1,3 +1,5 @@
+# last reviewed at: unknown
+
 module DfE
   module ReferenceData
     module BankHolidays
diff --git a/lib/dfe/reference_data/cah.rb b/lib/dfe/reference_data/cah.rb
index 6a0b0863..5a8ea499 100644
--- a/lib/dfe/reference_data/cah.rb
+++ b/lib/dfe/reference_data/cah.rb
@@ -1,3 +1,5 @@
+# last reviewed at: unknown
+
 ##
 ## AUTOGENERATED FILE - DO NOT EDIT
 ##
diff --git a/lib/dfe/reference_data/countries_and_territories.rb b/lib/dfe/reference_data/countries_and_territories.rb
index 09f7de08..0d1cf3e1 100644
--- a/lib/dfe/reference_data/countries_and_territories.rb
+++ b/lib/dfe/reference_data/countries_and_territories.rb
@@ -1,3 +1,5 @@
+# last reviewed at: unknown
+
 module DfE
   module ReferenceData
     module CountriesAndTerritories
diff --git a/lib/dfe/reference_data/degrees/grades.rb b/lib/dfe/reference_data/degrees/grades.rb
index 7b88cc81..d25e68a4 100644
--- a/lib/dfe/reference_data/degrees/grades.rb
+++ b/lib/dfe/reference_data/degrees/grades.rb
@@ -1,3 +1,5 @@
+# last reviewed at: unknown
+
 module DfE
   module ReferenceData
     module Degrees
diff --git a/lib/dfe/reference_data/degrees/institutions.rb b/lib/dfe/reference_data/degrees/institutions.rb
index b05fb3c1..3e32a419 100644
--- a/lib/dfe/reference_data/degrees/institutions.rb
+++ b/lib/dfe/reference_data/degrees/institutions.rb
@@ -1,3 +1,5 @@
+# last reviewed at: unknown
+
 module DfE
   module ReferenceData
     module Degrees
diff --git a/lib/dfe/reference_data/degrees/subjects.rb b/lib/dfe/reference_data/degrees/subjects.rb
index 7217b9a9..ff962355 100644
--- a/lib/dfe/reference_data/degrees/subjects.rb
+++ b/lib/dfe/reference_data/degrees/subjects.rb
@@ -1,3 +1,5 @@
+# last reviewed at: unknown
+
 module DfE
   module ReferenceData
     module Degrees
diff --git a/lib/dfe/reference_data/degrees/types.rb b/lib/dfe/reference_data/degrees/types.rb
index 7705d4ea..8600b892 100644
--- a/lib/dfe/reference_data/degrees/types.rb
+++ b/lib/dfe/reference_data/degrees/types.rb
@@ -1,3 +1,5 @@
+# last reviewed at: unknown
+
 module DfE
   module ReferenceData
     module Degrees
diff --git a/lib/dfe/reference_data/dqt/degree_types.rb b/lib/dfe/reference_data/dqt/degree_types.rb
index f14c4ef4..9cfbdc55 100644
--- a/lib/dfe/reference_data/dqt/degree_types.rb
+++ b/lib/dfe/reference_data/dqt/degree_types.rb
@@ -1,3 +1,5 @@
+# last reviewed at: unknown
+
 module DfE
   module ReferenceData
     module DQT
diff --git a/lib/dfe/reference_data/equality_and_diversity/disabilities.rb b/lib/dfe/reference_data/equality_and_diversity/disabilities.rb
index 379c5814..711fa23d 100644
--- a/lib/dfe/reference_data/equality_and_diversity/disabilities.rb
+++ b/lib/dfe/reference_data/equality_and_diversity/disabilities.rb
@@ -1,3 +1,5 @@
+# last reviewed at: unknown
+
 module DfE
   module ReferenceData
     module EqualityAndDiversity
diff --git a/lib/dfe/reference_data/hesa/domiciles.rb b/lib/dfe/reference_data/hesa/domiciles.rb
index 6e2186f2..54e2b01d 100644
--- a/lib/dfe/reference_data/hesa/domiciles.rb
+++ b/lib/dfe/reference_data/hesa/domiciles.rb
@@ -1,3 +1,5 @@
+# last reviewed at: unknown
+
 require_relative '../countries_and_territories'
 
 module DfE
diff --git a/lib/dfe/reference_data/itt/cycles.rb b/lib/dfe/reference_data/itt/cycles.rb
index 9068cb50..3fadd6aa 100644
--- a/lib/dfe/reference_data/itt/cycles.rb
+++ b/lib/dfe/reference_data/itt/cycles.rb
@@ -1,3 +1,5 @@
+# last reviewed at: unknown
+
 require 'tzinfo'
 require 'time'
 require 'date'
diff --git a/lib/dfe/reference_data/itt/incentives.rb b/lib/dfe/reference_data/itt/incentives.rb
index f9be9881..6348c348 100644
--- a/lib/dfe/reference_data/itt/incentives.rb
+++ b/lib/dfe/reference_data/itt/incentives.rb
@@ -1,3 +1,5 @@
+# last reviewed at: unknown
+
 module DfE
   module ReferenceData
     module ITT
diff --git a/lib/dfe/reference_data/itt/subjects.rb b/lib/dfe/reference_data/itt/subjects.rb
index a3af1015..bf5c7f9a 100644
--- a/lib/dfe/reference_data/itt/subjects.rb
+++ b/lib/dfe/reference_data/itt/subjects.rb
@@ -1,3 +1,5 @@
+# last reviewed at: unknown
+
 module DfE
   module ReferenceData
     module ITT
diff --git a/lib/dfe/reference_data/qualifications.rb b/lib/dfe/reference_data/qualifications.rb
index 5d457204..f5f5a9ef 100644
--- a/lib/dfe/reference_data/qualifications.rb
+++ b/lib/dfe/reference_data/qualifications.rb
@@ -1,3 +1,5 @@
+# last reviewed at: unknown
+
 module DfE
   module ReferenceData
     module Qualifications
diff --git a/lib/dfe/reference_data/subject_specialisms.rb b/lib/dfe/reference_data/subject_specialisms.rb
index 207b2dc9..3800987a 100644
--- a/lib/dfe/reference_data/subject_specialisms.rb
+++ b/lib/dfe/reference_data/subject_specialisms.rb
@@ -1,3 +1,5 @@
+# last reviewed at: unknown
+
 module DfE
   module ReferenceData
     module SubjectSpecialisms