diff --git a/apps/participation/models.py b/apps/participation/models.py
index 3b795d3..a251885 100644
--- a/apps/participation/models.py
+++ b/apps/participation/models.py
@@ -80,6 +80,13 @@ class Participation(models.Model):
         verbose_name=_("problem number"),
     )
 
+    valid = models.BooleanField(
+        null=True,
+        default=None,
+        verbose_name=_("valid"),
+        help_text=_("The video got the validation of the administrators."),
+    )
+
     solution = models.OneToOneField(
         "participation.Video",
         on_delete=models.SET_NULL,
diff --git a/apps/participation/templates/participation/team_detail.html b/apps/participation/templates/participation/team_detail.html
index 67ef64c..018fcb2 100644
--- a/apps/participation/templates/participation/team_detail.html
+++ b/apps/participation/templates/participation/team_detail.html
@@ -61,13 +61,17 @@
     </div>
     </div>
 
-    <hr>
+    {% if team.participation.valid %}
+        <hr>
 
-    <div class="text-center">
-        <a class="btn btn-info" href="{% url "participation:participation_detail" pk=team.participation.pk %}">
-            <i class="fas fa-video"></i> {% trans "Access to team participation" %} <i class="fas fa-video"></i>
-        </a>
-    </div>
+        <div class="text-center">
+            <a class="btn btn-info" href="{% url "participation:participation_detail" pk=team.participation.pk %}">
+                <i class="fas fa-video"></i> {% trans "Access to team participation" %} <i class="fas fa-video"></i>
+            </a>
+        </div>
+    {% else %}
+        {# TODO Validate team #}
+    {% endif %}
 
     {% trans "Update team" as modal_title %}
     {% trans "Update" as modal_button %}
diff --git a/apps/participation/views.py b/apps/participation/views.py
index 0b26e9f..22d72c4 100644
--- a/apps/participation/views.py
+++ b/apps/participation/views.py
@@ -170,6 +170,8 @@ class ParticipationDetailView(LoginRequiredMixin, DetailView):
 
     def dispatch(self, request, *args, **kwargs):
         user = request.user
+        if not self.get_object().valid:
+            raise PermissionDenied(_("The team is not validated yet."))
         if user.registration.is_admin or user.registration.participates\
                 and user.registration.team.participation.pk == kwargs["pk"]:
             return super().dispatch(request, *args, **kwargs)
diff --git a/locale/fr/LC_MESSAGES/django.po b/locale/fr/LC_MESSAGES/django.po
index 301c6e2..44e0ee3 100644
--- a/locale/fr/LC_MESSAGES/django.po
+++ b/locale/fr/LC_MESSAGES/django.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: Corres2math\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2020-09-27 18:00+0200\n"
+"POT-Creation-Date: 2020-10-11 15:58+0200\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: Yohann D'ANELLO <yohann.danello@animath.fr>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
@@ -99,7 +99,7 @@ msgstr "changelogs"
 msgid "Changelog of type \"{action}\" for model {model} at {timestamp}"
 msgstr "Changelog de type \"{action}\" pour le modèle {model} le {timestamp}"
 
-#: apps/participation/forms.py:14 apps/participation/models.py:22
+#: apps/participation/forms.py:14 apps/participation/models.py:23
 msgid "The trigram must be composed of three uppercase letters."
 msgstr "Le trigramme doit être composé de trois lettres majuscules."
 
@@ -107,27 +107,27 @@ msgstr "Le trigramme doit être composé de trois lettres majuscules."
 msgid "No team was found with this access code."
 msgstr "Aucune équipe n'a été trouvée avec ce code d'accès."
 
-#: apps/participation/models.py:15
+#: apps/participation/models.py:16
 msgid "name"
 msgstr "nom"
 
-#: apps/participation/models.py:21
+#: apps/participation/models.py:22
 msgid "trigram"
 msgstr "trigramme"
 
-#: apps/participation/models.py:29
+#: apps/participation/models.py:30
 msgid "access code"
 msgstr "code d'accès"
 
-#: apps/participation/models.py:30
+#: apps/participation/models.py:31
 msgid "The access code let other people to join the team."
 msgstr "Le code d'accès permet aux autres participants de rejoindre l'équipe."
 
-#: apps/participation/models.py:34
+#: apps/participation/models.py:35
 msgid "Grant Animath to publish my video"
 msgstr "Autoriser Animath à publier ma vidéo"
 
-#: apps/participation/models.py:35
+#: apps/participation/models.py:36
 msgid ""
 "Give the authorisation to publish the video on the main website to promote "
 "the action."
@@ -135,80 +135,80 @@ msgstr ""
 "Donner l'autorisation de publier la vidéo sur le site principal pour "
 "promouvoir les Correspondances."
 
-#: apps/participation/models.py:45
+#: apps/participation/models.py:59
 #, python-brace-format
 msgid "Team {name} ({trigram})"
 msgstr "Équipe {name} ({trigram})"
 
-#: apps/participation/models.py:48 apps/participation/models.py:59
-#: apps/registration/models.py:85 apps/registration/models.py:131
+#: apps/participation/models.py:62 apps/participation/models.py:73
+#: apps/registration/models.py:85 apps/registration/models.py:130
 msgid "team"
 msgstr "équipe"
 
-#: apps/participation/models.py:49
+#: apps/participation/models.py:63
 msgid "teams"
 msgstr "équipes"
 
-#: apps/participation/models.py:63
+#: apps/participation/models.py:77
 #, python-brace-format
 msgid "Problem #{problem:d}"
 msgstr "Problème n°{problem:d}"
 
-#: apps/participation/models.py:66
+#: apps/participation/models.py:80
 msgid "problem number"
 msgstr "numéro de problème"
 
-#: apps/participation/models.py:75
+#: apps/participation/models.py:86 apps/participation/models.py:134
+msgid "valid"
+msgstr "valide"
+
+#: apps/participation/models.py:87 apps/participation/models.py:135
+msgid "The video got the validation of the administrators."
+msgstr "La vidéo a été validée par les administrateurs."
+
+#: apps/participation/models.py:96
 msgid "solution video"
 msgstr "vidéo de solution"
 
-#: apps/participation/models.py:84
+#: apps/participation/models.py:105
 msgid "received participation"
 msgstr "participation reçue"
 
-#: apps/participation/models.py:93
+#: apps/participation/models.py:114
 msgid "synthesis video"
 msgstr "vidéo de synthèse"
 
-#: apps/participation/models.py:97
+#: apps/participation/models.py:118
 #, python-brace-format
 msgid "Participation of the team {name} ({trigram})"
 msgstr "Participation de l'équipe {name} ({trigram})"
 
-#: apps/participation/models.py:100
+#: apps/participation/models.py:121
 msgid "participation"
 msgstr "participation"
 
-#: apps/participation/models.py:101
+#: apps/participation/models.py:122
 msgid "participations"
 msgstr "participations"
 
-#: apps/participation/models.py:106
+#: apps/participation/models.py:127
 msgid "link"
 msgstr "lien"
 
-#: apps/participation/models.py:107
+#: apps/participation/models.py:128
 msgid "The full video link."
 msgstr "Le lien complet de la vidéo."
 
-#: apps/participation/models.py:113
-msgid "valid"
-msgstr "valide"
-
-#: apps/participation/models.py:114
-msgid "The video got the validation of the administrators."
-msgstr "La vidéo a été validée par les administrateurs."
-
-#: apps/participation/models.py:136
+#: apps/participation/models.py:157
 #, python-brace-format
 msgid "Video of team {name} ({trigram})"
 msgstr "Vidéo de l'équipe {name} ({trigram})"
 
-#: apps/participation/models.py:140
+#: apps/participation/models.py:161
 msgid "video"
 msgstr "vidéo"
 
-#: apps/participation/models.py:141
+#: apps/participation/models.py:162
 msgid "videos"
 msgstr "vidéos"
 
@@ -223,7 +223,9 @@ msgid "Join"
 msgstr "Rejoindre"
 
 #: apps/participation/templates/participation/participation_detail.html:6
-#: apps/participation/templates/participation/team_detail.html:6
+#: apps/participation/templates/participation/team_detail.html:27
+#: apps/participation/templates/participation/team_detail.html:36
+#: apps/participation/templates/participation/team_detail.html:41
 #: apps/registration/templates/registration/user_detail.html:6
 #: apps/registration/templates/registration/user_detail.html:26
 msgid "any"
@@ -239,7 +241,7 @@ msgid "Team:"
 msgstr "Équipe :"
 
 #: apps/participation/templates/participation/participation_detail.html:16
-#: apps/participation/templates/participation/team_detail.html:29
+#: apps/participation/templates/participation/team_detail.html:40
 msgid "Chosen problem:"
 msgstr "Problème choisi :"
 
@@ -267,40 +269,40 @@ msgstr "La plateforme de cette vidéo n'est pas encore supportée."
 msgid "Upload video"
 msgstr "Envoyer la vidéo"
 
-#: apps/participation/templates/participation/team_detail.html:14
+#: apps/participation/templates/participation/team_detail.html:13
 msgid "Name:"
 msgstr "Nom :"
 
-#: apps/participation/templates/participation/team_detail.html:17
+#: apps/participation/templates/participation/team_detail.html:16
 msgid "Trigram:"
 msgstr "Trigramme :"
 
-#: apps/participation/templates/participation/team_detail.html:20
+#: apps/participation/templates/participation/team_detail.html:19
 msgid "Access code:"
 msgstr "Code d'accès :"
 
-#: apps/participation/templates/participation/team_detail.html:23
+#: apps/participation/templates/participation/team_detail.html:22
 msgid "Coachs:"
 msgstr "Encadrants :"
 
-#: apps/participation/templates/participation/team_detail.html:26
+#: apps/participation/templates/participation/team_detail.html:31
 msgid "Participants:"
 msgstr "Participants :"
 
-#: apps/participation/templates/participation/team_detail.html:32
+#: apps/participation/templates/participation/team_detail.html:44
 msgid "Grant Animath to publish our video:"
 msgstr "Autoriser Animath à publier notre vidéo :"
 
-#: apps/participation/templates/participation/team_detail.html:35
+#: apps/participation/templates/participation/team_detail.html:47
 msgid "Authorizations:"
 msgstr "Autorisations :"
 
-#: apps/participation/templates/participation/team_detail.html:41
+#: apps/participation/templates/participation/team_detail.html:53
 msgid "Not uploaded yet"
 msgstr "Pas encore envoyée"
 
-#: apps/participation/templates/participation/team_detail.html:48
-#: apps/participation/templates/participation/team_detail.html:61
+#: apps/participation/templates/participation/team_detail.html:60
+#: apps/participation/templates/participation/team_detail.html:73
 #: apps/participation/templates/participation/update_team.html:12
 #: apps/registration/templates/registration/update_user.html:12
 #: apps/registration/templates/registration/user_detail.html:64
@@ -308,40 +310,55 @@ msgstr "Pas encore envoyée"
 msgid "Update"
 msgstr "Modifier"
 
-#: apps/participation/templates/participation/team_detail.html:56
+#: apps/participation/templates/participation/team_detail.html:68
 msgid "Access to team participation"
 msgstr "Accéder à la participation de l'équipe"
 
-#: apps/participation/templates/participation/team_detail.html:60
+#: apps/participation/templates/participation/team_detail.html:72
 msgid "Update team"
 msgstr "Modifier l'équipe"
 
-#: apps/participation/views.py:15 templates/base.html:70
+#: apps/participation/views.py:21 templates/base.html:70
 #: templates/base.html:206
 msgid "Create team"
 msgstr "Créer une équipe"
 
-#: apps/participation/views.py:22 apps/participation/views.py:50
+#: apps/participation/views.py:28 apps/participation/views.py:58
 msgid "You don't participate, so you can't create a team."
 msgstr "Vous ne participez pas, vous ne pouvez pas créer d'équipe."
 
-#: apps/participation/views.py:24 apps/participation/views.py:52
+#: apps/participation/views.py:30 apps/participation/views.py:60
 msgid "You are already in a team."
 msgstr "Vous êtes déjà dans une équipe."
 
-#: apps/participation/views.py:43 templates/base.html:75
+#: apps/participation/views.py:51 templates/base.html:75
 #: templates/base.html:202
 msgid "Join team"
 msgstr "Rejoindre une équipe"
 
-#: apps/participation/views.py:76 apps/participation/views.py:127
+#: apps/participation/views.py:86 apps/participation/views.py:164
 msgid "You are not in a team."
 msgstr "Vous n'êtes pas dans une équipe."
 
-#: apps/participation/views.py:77 apps/participation/views.py:128
+#: apps/participation/views.py:87 apps/participation/views.py:165
 msgid "You don't participate, so you don't have any team."
 msgstr "Vous ne participez pas, vous n'avez donc pas d'équipe."
 
+#: apps/participation/views.py:148 apps/registration/views.py:213
+#, python-brace-format
+msgid "Photo authorization of {student}.{ext}"
+msgstr "Autorisation de droit à l'image de {student}.{ext}"
+
+#: apps/participation/views.py:152
+#, fuzzy, python-brace-format
+#| msgid "Photo authorization of {student}.{ext}"
+msgid "Photo authorizations of team {trigram}.zip"
+msgstr "Autorisation de droit à l'image de {student}.{ext}"
+
+#: apps/participation/views.py:174
+msgid "The team is not validated yet."
+msgstr "L'équipe n'est pas encore validée."
+
 #: apps/registration/forms.py:13
 msgid "role"
 msgstr "rôle"
@@ -350,7 +367,7 @@ msgstr "rôle"
 msgid "participant"
 msgstr "participant"
 
-#: apps/registration/forms.py:16 apps/registration/models.py:140
+#: apps/registration/forms.py:16 apps/registration/models.py:139
 msgid "coach"
 msgstr "encadrant"
 
@@ -399,47 +416,47 @@ msgstr "classe"
 msgid "school"
 msgstr "école"
 
-#: apps/registration/models.py:104
+#: apps/registration/models.py:103
 msgid "photo authorization"
 msgstr "autorisation de droit à l'image"
 
-#: apps/registration/models.py:112
+#: apps/registration/models.py:111
 msgid "student"
 msgstr "étudiant"
 
-#: apps/registration/models.py:120
+#: apps/registration/models.py:119
 msgid "student registration"
 msgstr "inscription d'élève"
 
-#: apps/registration/models.py:121
+#: apps/registration/models.py:120
 msgid "student registrations"
 msgstr "inscriptions d'élève"
 
-#: apps/registration/models.py:135
+#: apps/registration/models.py:134
 msgid "professional activity"
 msgstr "activité professionnelle"
 
-#: apps/registration/models.py:148
+#: apps/registration/models.py:147
 msgid "coach registration"
 msgstr "inscription d'encadrant"
 
-#: apps/registration/models.py:149
+#: apps/registration/models.py:148
 msgid "coach registrations"
 msgstr "inscriptions d'encadrants"
 
-#: apps/registration/models.py:154
+#: apps/registration/models.py:153
 msgid "role of the administrator"
 msgstr "rôle de l'administrateur"
 
-#: apps/registration/models.py:159
+#: apps/registration/models.py:158
 msgid "admin"
 msgstr "admin"
 
-#: apps/registration/models.py:167
+#: apps/registration/models.py:166
 msgid "admin registration"
 msgstr "inscription d'administrateur"
 
-#: apps/registration/models.py:168
+#: apps/registration/models.py:167
 msgid "admin registrations"
 msgstr "inscriptions d'administrateur"
 
@@ -690,11 +707,6 @@ msgstr "Mail de confirmation de l'adresse mail envoyé"
 msgid "Resend email validation link"
 msgstr "Renvoyé le lien de validation de l'adresse mail"
 
-#: apps/registration/views.py:213
-#, python-brace-format
-msgid "Photo authorization of {student}.{ext}"
-msgstr "Autorisation de droit à l'image de {student}.{ext}"
-
 #: corres2math/settings.py:150
 msgid "English"
 msgstr "Anglais"