diff --git a/locale/en/LC_MESSAGES/django.mo b/locale/en/LC_MESSAGES/django.mo
index 8dfc74b2d..7f7aaf9ee 100644
Binary files a/locale/en/LC_MESSAGES/django.mo and b/locale/en/LC_MESSAGES/django.mo differ
diff --git a/locale/en/LC_MESSAGES/django.po b/locale/en/LC_MESSAGES/django.po
index 2784d4124..705dc97c8 100644
--- a/locale/en/LC_MESSAGES/django.po
+++ b/locale/en/LC_MESSAGES/django.po
@@ -5703,6 +5703,47 @@ msgstr "Task edited"
 msgid "Taak verwijderd"
 msgstr "Task deleted"
 
+#: proposals/forms.py:190
+msgid "Je dient een eindverantwoordelijke op te geven."
+msgstr "You are required to specify the researcher with final responsibility."
+
+#: proposals/forms.py:579
+msgid "Nieuwe beoogde startdatum"
+msgstr "New intended start date"
+
+#: proposals/models.py:517
+#: proposals/templates/proposals/vue_templates/proposal_archive_list.html:115
+#: proposals/templates/proposals/vue_templates/proposal_list.html:166
+msgid "Eindverantwoordelijke onderzoeker"
+msgstr "Researcher with final responsibility"
+
+#: proposals/templates/proposals/proposal_update_date_start.html:14
+#: proposals/templates/proposals/proposal_update_date_start.html:28
+msgid "Startdatum aanpassen"
+msgstr "Edit start date"
+
+#: proposals/templates/proposals/proposal_update_date_start.html:17
+msgid ""
+"Op deze pagina kan de startdatum worden aangepast van de aanvraag %(title)s "
+"(referentienummer <em>%(ref_number)s</em>). <b>Let op!</b> Als de review al "
+"is afgerond, wordt de nieuwe startdatum niet automatisch weergegeven in de "
+"PDF. Mocht je de PDF opnieuw willen genereren, neem hierover dan contact op "
+"met"
+msgstr ""
+"On this page, the start date of proposal %(title)s (reference number "
+"<em>%(ref_number)s</em>) can be edited. <b>Note!</b> If the review has "
+"already been concluded, the new start date will not be displayed in the PDF. "
+"If you would like the PDF to be generated with the new start date, please "
+"reach out to "
+
+#: reviews/templates/reviews/vue_templates/review_list.html:122
+msgid "Reviewronde beëindigd: "
+msgstr "Reviewing round ended: "
+
+#: reviews/utils/review_actions.py:304
+msgid "Startdatum wijzigen"
+msgstr "Edit start date"
+
 #~ msgid ""
 #~ "De revisie bevat interventieonderzoek, terwijl de originele aanvraag dat "
 #~ "niet bevat."
diff --git a/proposals/forms.py b/proposals/forms.py
index 382492b49..bb860fb6f 100644
--- a/proposals/forms.py
+++ b/proposals/forms.py
@@ -21,6 +21,7 @@
 from .validators import UniqueTitleValidator
 from .widgets import SelectMultipleUser, SelectUser
 
+from cdh.core.forms import DateField
 
 class ProposalForm(UserKwargModelFormMixin, SoftValidationMixin,
                    ConditionalModelForm):
@@ -583,6 +584,15 @@ class Meta:
             'dmp_file'
         ]
 
+class ProposalUpdateDateStartForm(forms.ModelForm):
+    date_start = DateField(label=_('Nieuwe beoogde startdatum'))
+
+    class Meta:
+        model = Proposal
+        fields = [
+            'date_start'
+        ]
+
 class ProposalSubmitForm(forms.ModelForm):
     class Meta:
         model = Proposal
diff --git a/proposals/templates/proposals/proposal_update_date_start.html b/proposals/templates/proposals/proposal_update_date_start.html
new file mode 100644
index 000000000..389eceac6
--- /dev/null
+++ b/proposals/templates/proposals/proposal_update_date_start.html
@@ -0,0 +1,33 @@
+{% extends "base/base.html" %}
+
+{% load static %}
+{% load i18n %}
+
+{% block header_title %}
+    {% trans "Formulieren aanpassen" %} - {{ block.super }}
+{% endblock %}
+
+{% block content %}
+    <div class="uu-inner-container">
+        <div class="col-12">
+            <h2>
+                {% trans "Startdatum aanpassen" %}
+            </h2>
+            <p>
+                {% blocktrans trimmed with title=proposal.title ref_number=proposal.reference_number %}
+                Op deze pagina kan de startdatum worden aangepast van de aanvraag {{ title }}
+                (referentienummer <em>{{ ref_number }}</em>). <b>Let op!</b> Als de review al is afgerond,
+                wordt de nieuwe startdatum niet automatisch weergegeven in de PDF. Mocht je de PDF 
+                opnieuw willen genereren, neem hierover dan contact op met 
+                {% endblocktrans %}
+                <a href="mailto:portalsupport.gw@uu.nl">portalsupport.gw@uu.nl</a>.
+            </p>
+            <form action="" method="post" enctype="multipart/form-data">{% csrf_token %}
+                <table>{{ form.as_table }}</table>
+                <input type="hidden" name="next" value="{{ request.META.HTTP_REFERER }}">
+                <input class="pure-button pure-button-primary" type="submit" value="{% trans 'Startdatum aanpassen' %}" />
+                <a class="pure-button pure-button-secondary" href="javascript:history.go(-1);">{% trans "Terug naar de vorige pagina" %}</a>
+            </form>
+        </div>
+    </div>
+{% endblock %}
\ No newline at end of file
diff --git a/proposals/urls.py b/proposals/urls.py
index d7dcd56e5..8b42ab94c 100644
--- a/proposals/urls.py
+++ b/proposals/urls.py
@@ -15,7 +15,8 @@
     ProposalSubmitPreApproved, ProposalUpdatePreApproved, \
     ProposalUsersOnlyArchiveView, \
     ProposalCopyAmendment, ProposalsPublicArchiveView, \
-    ProposalUpdateDataManagement, TranslatedConsentFormsView
+    ProposalUpdateDataManagement, TranslatedConsentFormsView, \
+    ProposalUpdateDateStart
 
 from .views.study_views import StudyStart, StudyConsent
 from .views.wmo_views import WmoCreate, WmoUpdate, \
@@ -84,6 +85,8 @@
          name='data_management'),
     path('update_data_management/<int:pk>/', ProposalUpdateDataManagement.as_view(), 
          name='update_data_management'),
+    path('update_date_start/<int:pk>/', ProposalUpdateDateStart.as_view(), 
+         name='update_date_start'),
 
     path('submit/<int:pk>/', include([
         path('', ProposalSubmit.as_view(), name='submit'),
diff --git a/proposals/views/proposal_views.py b/proposals/views/proposal_views.py
index 2c767133b..ad3fa98ec 100644
--- a/proposals/views/proposal_views.py
+++ b/proposals/views/proposal_views.py
@@ -28,7 +28,8 @@
 from ..forms import ProposalConfirmationForm, ProposalCopyForm, \
     ProposalDataManagementForm, ProposalForm, ProposalStartPracticeForm, \
     ProposalSubmitForm, RevisionProposalCopyForm, AmendmentProposalCopyForm, \
-    ProposalUpdateDataManagementForm, TranslatedConsentForms
+    ProposalUpdateDataManagementForm, ProposalUpdateDateStartForm, \
+    TranslatedConsentForms
 from ..models import Proposal, Wmo
 from ..utils import generate_pdf, generate_ref_number
 from proposals.mixins import ProposalMixin, ProposalContextMixin, \
@@ -376,7 +377,19 @@ class ProposalUpdateDataManagement(GroupRequiredMixin, generic.UpdateView):
     def get_success_url(self):
         """Continue to the URL specified in the 'next' POST parameter"""
         return reverse('reviews:detail', args=[self.object.latest_review().pk])
+    
+class ProposalUpdateDateStart(GroupRequiredMixin, generic.UpdateView):
+    """
+    Allows the secretary to change the date_start on the Proposal level
+    """
+    model = Proposal
+    template_name = 'proposals/proposal_update_date_start.html'
+    form_class = ProposalUpdateDateStartForm
+    group_required = settings.GROUP_SECRETARY
 
+    def get_success_url(self):
+        """Continue to the URL specified in the 'next' POST parameter"""
+        return reverse('reviews:detail', args=[self.object.latest_review().pk])
 
 class ProposalSubmit(ProposalContextMixin, AllowErrorsOnBackbuttonMixin, UpdateView, ):
     model = Proposal
diff --git a/reviews/api/views.py b/reviews/api/views.py
index 9d8953025..37d5aa0a8 100644
--- a/reviews/api/views.py
+++ b/reviews/api/views.py
@@ -360,6 +360,8 @@ def get_context(self):
             'CLOSED': Review.CLOSED,
             'GO': Review.GO,
             'GO_POST_HOC': Review.GO_POST_HOC,
+            'REVISION': Review.REVISION,
+
         }
         context['current_user_pk'] = self.request.user.pk
 
diff --git a/reviews/templates/reviews/vue_templates/review_list.html b/reviews/templates/reviews/vue_templates/review_list.html
index f56929f52..b9f90fcea 100644
--- a/reviews/templates/reviews/vue_templates/review_list.html
+++ b/reviews/templates/reviews/vue_templates/review_list.html
@@ -118,6 +118,12 @@ <h4>
                 {{ review.get_stage_display }}
                 {% endverbatim %}
             </div>
+            <div class="ufl-undertitle-line" v-if="review.stage === context.review.CLOSED && review.continuation === context.review.REVISION">
+                {% trans "Reviewronde beëindigd: " %}
+                {% verbatim %}
+                {{ review.date_end | date("DD-MM-YYYY") }}
+                {% endverbatim %}
+            </div>
         </template>
 
 
diff --git a/reviews/utils/review_actions.py b/reviews/utils/review_actions.py
index a9d61bc2c..41801ca66 100644
--- a/reviews/utils/review_actions.py
+++ b/reviews/utils/review_actions.py
@@ -22,6 +22,7 @@ def __init__(self, review, user):
                                DiscontinueReview(review, user),
                                SendConfirmation(review, user),
                                ChangeArchiveStatus(review, user),
+                               ChangeDateStart(review, user),
         ]
         self.ufl_actions = []
 
@@ -281,4 +282,24 @@ def description(self):
             return _('Verberg aanvraag uit het archief')
         else:
             return _('Plaats aanvraag in het archief.')
+        
+class ChangeDateStart(ReviewAction):
+
+    def is_available(self):
+
+        user = self.user
+
+        user_groups = user.groups.values_list("name", flat=True)
+        if not settings.GROUP_SECRETARY in user_groups:
+            return False
+        
+        return True
+    
+    def action_url(self):
+
+        return reverse('proposals:update_date_start', args=(self.review.proposal.pk,))
+
+    def description(self):
+
+        return _('Startdatum wijzigen')