diff --git a/ietf/secr/sreq/forms.py b/ietf/secr/sreq/forms.py
index 840b235490..0c112a063a 100644
--- a/ietf/secr/sreq/forms.py
+++ b/ietf/secr/sreq/forms.py
@@ -3,6 +3,7 @@
 
 
 from django import forms
+from django.template.defaultfilters import pluralize
 
 import debug                            # pyflakes:ignore
 
@@ -235,6 +236,25 @@ def clean_joint_with_groups(self):
     def clean_comments(self):
         return clean_text_field(self.cleaned_data['comments'])
 
+    def clean_bethere(self):
+        bethere = self.cleaned_data["bethere"]
+        if bethere:
+            extra = set(
+                Person.objects.filter(
+                    role__group=self.group, role__name__in=["chair", "ad"]
+                )
+                & bethere
+            )
+            if extra:
+                extras = ", ".join(e.name for e in extra)
+                raise forms.ValidationError(
+                    (
+                        f"Please remove the following person{pluralize(len(extra))}, the system "
+                        f"tracks their availability due to their role{pluralize(len(extra))}: {extras}."
+                    )
+                )
+        return bethere
+
     def clean_send_notifications(self):
         return True if not self.notifications_optional else self.cleaned_data['send_notifications']
 
diff --git a/ietf/secr/templates/includes/session_info.txt b/ietf/secr/templates/includes/session_info.txt
index eea4a5f174..bffc13e3ef 100644
--- a/ietf/secr/templates/includes/session_info.txt
+++ b/ietf/secr/templates/includes/session_info.txt
@@ -14,7 +14,7 @@ Conflicts to Avoid:
 {% if session.adjacent_with_wg %} Adjacent with WG: {{ session.adjacent_with_wg }}{% endif %}       
 {% if session.timeranges_display %} Can't meet: {{ session.timeranges_display|join:", " }}{% endif %}
 
-People who must be present:
+Participants who must be present:
 {% for person in session.bethere %}  {{ person.ascii_name }}
 {% endfor %}
 Resources Requested:
diff --git a/ietf/secr/templates/includes/sessions_request_form.html b/ietf/secr/templates/includes/sessions_request_form.html
index f05bee3db1..7a8c90855f 100755
--- a/ietf/secr/templates/includes/sessions_request_form.html
+++ b/ietf/secr/templates/includes/sessions_request_form.html
@@ -28,12 +28,12 @@
         {% endif %}
         <tr class="bg1"><td>Number of Attendees:{% if not is_virtual %}<span class="required">*</span>{% endif %}</td><td>{{ form.attendees.errors }}{{ form.attendees }}</td></tr>
         <tr class="bg2">
-            <td>People who must be present:</td>
+            <td>Participants who must be present:</td>
             <td>
                 {{ form.bethere.errors }}
                 {{ form.bethere }}
                 <p class="fw-bold text-danger">
-                    You should not include the Area Directors; they will be added automatically.
+                    Do not include Area Directors and WG Chairs; the system already tracks their availability.
                 </p>
             </td>
         </tr>
diff --git a/ietf/secr/templates/includes/sessions_request_view.html b/ietf/secr/templates/includes/sessions_request_view.html
index 596338c47d..bc6aef0611 100644
--- a/ietf/secr/templates/includes/sessions_request_view.html
+++ b/ietf/secr/templates/includes/sessions_request_view.html
@@ -35,7 +35,7 @@
         </tr>
     {% endif %}
     <tr class="row1">
-        <td>People who must be present:</td>
+        <td>Participants who must be present:</td>
         <td>{% if session.bethere %}<ul>{% for person in session.bethere %}<li>{{ person }}</li>{% endfor %}</ul>{% else %}<i>None</i>{% endif %}</td>
     </tr>
     <tr class="row2">
@@ -70,4 +70,4 @@
         </tr>
     {% endif %}
     </tbody>
-</table>
+</table>
\ No newline at end of file
diff --git a/ietf/static/js/session_details_form.js b/ietf/static/js/session_details_form.js
index 29b481999f..04b11875a7 100644
--- a/ietf/static/js/session_details_form.js
+++ b/ietf/static/js/session_details_form.js
@@ -123,4 +123,4 @@
         }
     }
     window.addEventListener('load', on_load, false);
-})();
\ No newline at end of file
+})();