diff --git a/models/scop_partner_staff.py b/models/scop_partner_staff.py
index 0c5e3090cd85986fa09af23ffdb302712ff26b18..bc08dee0b755dc72b36c73eb5b805b96b0bf1706 100644
--- a/models/scop_partner_staff.py
+++ b/models/scop_partner_staff.py
@@ -22,6 +22,10 @@ class ScopPartnerStaff(models.Model):
     partner_siret = fields.Char("SIRET", related='partner_id.siret')
     cooperative_form_id = fields.Many2one(
         related='partner_id.cooperative_form_id')
+    naf_id = fields.Many2one(related='partner_id.naf_id')
+    is_partner_in_tracked_naf = fields.Boolean(
+        'Coop dans les NAF marqués',
+        compute='_compute_is_partner_in_tracked_naf')
     user_id = fields.Many2one(
         comodel_name='res.users',
         string='Utilisateur',
@@ -43,8 +47,7 @@ class ScopPartnerStaff(models.Model):
         required=True, )
     staff_count = fields.Integer("Effectif (EF)", required=True, )
     staff_shareholder_count = fields.Integer("Eff. Sociétaires (ES)")
-    staff_average = fields.Integer("Equivalent temps plein (ETP)",
-                                   required=True, )
+    staff_average = fields.Integer("Equivalent temps plein (ETP)")
     staff_men = fields.Integer("Eff. salariés hommes")
     staff_women = fields.Integer("Eff. salariés femmes")
     staff_shareholder_men = fields.Integer("Sociétaires salariés hommes")
@@ -56,6 +59,23 @@ class ScopPartnerStaff(models.Model):
         ondelete='cascade')
     comment = fields.Char('Commentaire')
 
+    # ------------------------------------------------------
+    # Compute
+    # ------------------------------------------------------
+    @api.multi
+    def _compute_is_partner_in_tracked_naf(self):
+        naf_90_01Z = self.env.ref('lefilament_naf.naf_90_01Z').id
+        naf_90_02Z = self.env.ref('lefilament_naf.naf_90_02Z').id
+        naf_78_20Z = self.env.ref('lefilament_naf.naf_78_20Z').id
+        naf_82_11Z = self.env.ref('lefilament_naf.naf_82_11Z').id
+        naf_78_10Z = self.env.ref('lefilament_naf.naf_78_10Z').id
+        for r in self:
+            if r.naf_id.id in (naf_90_01Z, naf_90_02Z, naf_78_20Z,
+                                    naf_82_11Z, naf_78_10Z):
+                r.is_partner_in_tracked_naf = True
+            else:
+                r.is_partner_in_tracked_naf = False
+
     # ------------------------------------------------------
     # OnChange
     # ------------------------------------------------------
@@ -81,6 +101,7 @@ class ScopPartnerStaff(models.Model):
             Interdit de créer une ligne à 0 sauf lorsque
             cette ligne vient de la liste ministère
             ou si ligne associés pour les SCIC
+            ou si ligne ETP pour les 'tracked naf'
         """
         if self.type_entry \
                 not in ('questionnaire', 'questionnaire_inscription'):
@@ -88,8 +109,13 @@ class ScopPartnerStaff(models.Model):
                     'cgscop_partner.form_scic').id:
                 if self.staff_count == 0 or self.staff_average == 0:
                     raise ValidationError(
-                        "Les effectifs et les équivalents temps plein doivent"
-                        " être renseignés et supérieurs à 0.")
+                        "Les colonnes Effectif (EF) et Equivalents temps plein"
+                        " (ETP) doivent être renseignés et supérieurs à 0.")
+            elif self.is_partner_in_tracked_naf:
+                if self.staff_count == 0 or self.staff_shareholder_count == 0:
+                    raise ValidationError(
+                        "Les colonnes Effectif (EF) et Eff. Sociétaires (ES)"
+                        " doivent être renseignés et supérieurs à 0.")
             else:
                 if self.staff_shareholder_count == 0 \
                         or self.cooperative_form_id == 0 \
diff --git a/views/res_partner.xml b/views/res_partner.xml
index 72a53a704e1ca05211e9d2c82725f0493d6591f4..a6ab78075e998f7964d35076367a549ecc02e920 100644
--- a/views/res_partner.xml
+++ b/views/res_partner.xml
@@ -697,11 +697,12 @@
                         <field name="staff_ids" mode="tree" context="{'default_partner_id': active_id, 'default_type_entry': 'regul_ur'}">
                             <tree delete="false" default_order="effective_date desc" editable="top">
                                 <field name="cooperative_form_id" invisible="1"/>
+                                <field name="is_partner_in_tracked_naf" invisible="1"/>
                                 <field name="effective_date" attrs="{'readonly':[('type_entry','in',('questionnaire', 'questionnaire_inscription'))]}"/>
                                 <field name="type_entry" attrs="{'readonly':[('type_entry','in',('questionnaire', 'questionnaire_inscription'))]}"/>
                                 <field name="staff_count" attrs="{'readonly':[('type_entry','in',('questionnaire', 'questionnaire_inscription'))]}"/>
                                 <field name="staff_shareholder_count" attrs="{'readonly':[('type_entry','in',('questionnaire', 'questionnaire_inscription'))], 'required':[('cooperative_form_id', '!=', %(cgscop_partner.form_scic)d)]}"/>
-                                <field name="staff_average" attrs="{'readonly':[('type_entry','in',('questionnaire', 'questionnaire_inscription'))]}"/>
+                                <field name="staff_average" attrs="{'readonly':[('type_entry','in',('questionnaire', 'questionnaire_inscription'))], 'required':[('is_partner_in_tracked_naf', '!=', True)]}"/>
                                 <field name="comment" />
                                 <field name="user_id" readonly="1"/>
                                 <button name="edit_staff" type="object" icon="fa-pencil-square-o"/>
diff --git a/views/scop_partner_staff.xml b/views/scop_partner_staff.xml
index 42f5cade2e33fe5f42bfc84098ff95815b2c520f..b0637ca9168c74ab109f1e5946ce184acf8b990a 100644
--- a/views/scop_partner_staff.xml
+++ b/views/scop_partner_staff.xml
@@ -24,10 +24,12 @@
                             </group>
                             <group name="staff_stats">
                                 <field name="cooperative_form_id" invisible="1"/>
+                                <field name="is_partner_in_tracked_naf" invisible="1"/>
                                 <field name="staff_count" attrs="{'readonly':[('type_entry','in',('questionnaire', 'questionnaire_inscription'))]}"/>
                                 <field name="staff_shareholder_count"
                                        attrs="{'readonly':[('type_entry','in',('questionnaire', 'questionnaire_inscription'))], 'required':[('cooperative_form_id', '!=', %(cgscop_partner.form_scic)d)]}"/>
-                                <field name="staff_average" attrs="{'readonly':[('type_entry','in',('questionnaire', 'questionnaire_inscription'))]}"/>
+                                <field name="staff_average"
+                                       attrs="{'readonly':[('type_entry','in',('questionnaire', 'questionnaire_inscription'))], 'required':[('is_partner_in_tracked_naf', '!=', True)]}"/>
                             </group>
                             <group name="staff_stats">
                                 <field name="staff_men"/>