diff --git a/docs/style-guide-updates.md b/docs/style-guide-updates.md
index ba817d922..0b585c367 100644
--- a/docs/style-guide-updates.md
+++ b/docs/style-guide-updates.md
@@ -16,6 +16,17 @@ lede: 'New and updated entries in the <a href="/content-standards/style-guide/">
     </tr>
     </thead>
     <tbody class="govuk-table__body">
+    <tr class="govuk-table__row">
+      <td class="govuk-table__cell">
+        <a href="/content-standards/style-guide#local-admin-unit"><b>local admin unit</b></a>
+      </td>
+      <td class="govuk-table__cell">
+        <span class="govuk-tag govuk-tag--green">New</span>
+      </td>
+      <td class="govuk-table__cell"><p><a href="/content-standards/style-guide#probation-delivery-unit-%28pdu%29">Probation delivery units</a> are divided into local admin units. These used to be called local delivery units and you may hear the initialism LDU.</p>
+      <p>The initialism LAU is probably not well-known enough yet to be used without explanation. Write local admin unit out in full the first time you use it. Use sentence case.</p></td>
+      <td class="govuk-table__cell" data-sort-value="20250811">11 August 2025</td>
+    </tr>
     <tr class="govuk-table__row">
           <td class="govuk-table__cell">
             <a href="/content-standards/style-guide#unlock"><b>Unlock</b></a>
diff --git a/docs/style-guide.md b/docs/style-guide.md
index 174a6c4f8..b6a93c0d0 100644
--- a/docs/style-guide.md
+++ b/docs/style-guide.md
@@ -16,7 +16,7 @@ First published: 18 December 2024
 </p>
 
 <p class="govuk-!-margin-bottom-0">
-Last updated: 5 August 2025
+Last updated: 11 August 2025
 </p>
 
 <p class="govuk-!-margin-bottom-6">
@@ -285,6 +285,15 @@ Staff in prisons may still use ‘IEP’ when referring to someone’s incentive
 
 This is 2 separate words. Not keyworker.
 
+{% endaccordionSection %}
+{% accordionSection "L" %}
+
+### local admin unit
+
+[Probation delivery units](#probation-delivery-unit-%28pdu%29) are divided into local admin units. These used to be called local delivery units and you may hear the initialism LDU.
+
+The initialism LAU is probably not well-known enough yet to be used without explanation. Write local admin unit out in full the first time you use it. Use sentence case.
+
 {% endaccordionSection %}
 {% accordionSection "N" %}