diff --git a/back/api/models.py b/back/api/models.py
index d2faf568..a6b84da1 100644
--- a/back/api/models.py
+++ b/back/api/models.py
@@ -378,8 +378,7 @@ class OrderStatus(models.TextChoices):
         blank=True,
         null=True)
     invoice_reference = models.CharField(_('invoice_reference'), max_length=255, blank=True)
-    order_type = models.ForeignKey(
-        OrderType, models.PROTECT, verbose_name=_('order_type'), blank=True, null=True)
+    order_type = models.ForeignKey(OrderType, models.PROTECT, verbose_name=_('order_type'))
     status = models.CharField(
         _('status'), max_length=20, choices=OrderStatus.choices, default=OrderStatus.DRAFT)
     date_ordered = models.DateTimeField(_('date_ordered'), blank=True, null=True)
@@ -573,6 +572,13 @@ def set_price(self, price=None, base_fee=None):
                 self.price_status = OrderItem.PricingStatus.CALCULATED
                 return
 
+        # prices are 0 when order is for public authorities or academic purposes
+        if self.order.order_type.name in ( 'Communal', 'Cantonal', 'Fédéral', 'Académique'):
+            self._price = Money(0, 'CHF')
+            self._base_fee = Money(0, 'CHF')
+            self.price_status = OrderItem.PricingStatus.CALCULATED
+            return
+
         if self.product.pricing.pricing_type != Pricing.PricingType.MANUAL:
             self._price, self._base_fee = self.product.pricing.get_price(self.order.geom)
             if self._price is not None:
diff --git a/back/api/tests/test_pricing.py b/back/api/tests/test_pricing.py
index cb534258..8ba93b1e 100644
--- a/back/api/tests/test_pricing.py
+++ b/back/api/tests/test_pricing.py
@@ -3,7 +3,7 @@
 from django.contrib.gis.geos import Polygon, Point
 from djmoney.money import Money
 from rest_framework.test import APITestCase
-from api.models import Contact, Pricing, Product, PricingGeometry, Order, OrderItem
+from api.models import Contact, Pricing, Product, PricingGeometry, Order, OrderItem, OrderType
 
 UserModel = get_user_model()
 
@@ -135,6 +135,13 @@ def setUp(self):
             geom=self.order_geom
         )
 
+        self.orderTypePrivate = OrderType.objects.create(
+            name="Privé",
+        )
+        self.orderTypePublic = OrderType.objects.create(
+            name="Communal",
+        )
+
         for geom in self.building_pricing_geometry:
             geom.pricing = Pricing.objects.filter(
                 name="Par nombre d'objets").first()
@@ -179,6 +186,7 @@ def test_manual_price(self):
             order=self.order,
             product=self.products[5]
         )
+        self.order.order_type = self.orderTypePrivate
         self.order.save()
         self.assertEqual(self.order.status, Order.OrderStatus.DRAFT)
         self.assertEqual(order_item.price_status, OrderItem.PricingStatus.PENDING, 'princing status stays pending')
@@ -217,6 +225,7 @@ def test_base_fee(self):
             order=self.order,
             product=self.products[3]
         )
+        self.order.order_type = self.orderTypePrivate
         self.order.save()
         orderitem1.set_price()
         orderitem1.save()
@@ -234,6 +243,7 @@ def test_user_subscribed_to_product(self):
             order=self.order,
             product=self.products[3]
         )
+        self.order.order_type = self.orderTypePrivate
         self.order.save()
         orderitem2.set_price()
         orderitem2.save()
@@ -260,6 +270,20 @@ def test_invoice_contact_subscribed_to_product(self):
             subscribed=True
         )
         self.order.invoice_contact = contact
+        self.order.order_type = self.orderTypePrivate
+        self.order.save()
+        orderitem2.set_price()
+        orderitem2.save()
+        self.order.set_price()
+        self.assertEqual(self.order.processing_fee, Money(0, 'CHF'), 'Processing fee is free')
+        self.assertEqual(self.order.total_with_vat, Money(0, 'CHF'), 'Order is free')
+
+    def test_public_order_is_free(self):
+        orderitem2 = OrderItem.objects.create(
+            order=self.order,
+            product=self.products[3]
+        )
+        self.order.order_type = self.orderTypePublic
         self.order.save()
         orderitem2.set_price()
         orderitem2.save()
diff --git a/front/src/app/_components/cart-overlay/cart-overlay.component.html b/front/src/app/_components/cart-overlay/cart-overlay.component.html
index 6c6cdf72..52aaa69f 100644
--- a/front/src/app/_components/cart-overlay/cart-overlay.component.html
+++ b/front/src/app/_components/cart-overlay/cart-overlay.component.html
@@ -19,10 +19,10 @@
 
 <button [disabled]="order && !order.geom" mat-raised-button color="primary" class="action-button"
         (click)="naviguateToNewOrder()">
-  Passer la commande
+  Poursuivre la commande...
 </button>
 
 <div *ngIf="order && !order?.geom" class="flex-row warning-container">
   <mat-icon>warning</mat-icon>
-  <span>Vous devez sélectionner un périmètre avant de passer la commande.</span>
+  <span>Vous devez sélectionner un périmètre avant de poursuivre la commande.</span>
 </div>
diff --git a/front/src/app/account/new-order/new-order.component.ts b/front/src/app/account/new-order/new-order.component.ts
index e28a7abd..e1bece1e 100644
--- a/front/src/app/account/new-order/new-order.component.ts
+++ b/front/src/app/account/new-order/new-order.component.ts
@@ -346,8 +346,10 @@ export class NewOrderComponent implements OnInit, OnDestroy {
     const mandatoryContactOrders = ['Communal', 'Cantonal', 'Fédéral', 'Académique'];
     if (mandatoryContactOrders.indexOf(orderTypeValue.name) > -1) {
       // Force enable contact form because it's a public mandate
+      this.addressChoiceCtrl?.setValue('2');
       this.updateContactForm('2');
     } else {
+      this.addressChoiceCtrl?.setValue('1');
       this.updateContactForm('1');
     }
     this.orderFormGroup.get('title')?.setValue('');
diff --git a/front/src/app/welcome/catalog/catalog.component.html b/front/src/app/welcome/catalog/catalog.component.html
index 93de83d8..7e7e5318 100644
--- a/front/src/app/welcome/catalog/catalog.component.html
+++ b/front/src/app/welcome/catalog/catalog.component.html
@@ -21,7 +21,16 @@
       <img class="item-logo rounded-image" alt="Logo du produit" aria-label="Logo du produit"
            src="{{mediaUrl}}/{{product.thumbnail_link}}">
       <div class="item-label text-ellipsis-2" [matTooltip]="product.label">{{product.label}}</div>
-      <span class="item-price text-secondary">{{product.pricing}}</span>
+
+      <ng-container *ngIf="product.pricing === 'Gratuit'; then gratuit; else payant">
+      </ng-container>
+      <ng-template #gratuit>
+        <span class="item-price text-secondary">Gratuit</span>
+      </ng-template>
+      <ng-template #payant>
+        <span class="item-price text-secondary">Tarification selon le type de mandat</span>
+      </ng-template>
+
       <button class="item-help" matTooltip="Voir les meta données" aria-label="Voir les meta données"
               [disabled]="!product.metadata"
               color="primary" mat-button
diff --git a/scripts/triggers.sql b/scripts/triggers.sql
index 19907198..5b870097 100644
--- a/scripts/triggers.sql
+++ b/scripts/triggers.sql
@@ -1,3 +1,8 @@
+CREATE TEXT SEARCH CONFIGURATION fr ( COPY = french );
+ALTER TEXT SEARCH CONFIGURATION fr
+        ALTER MAPPING FOR hword, hword_part, word
+        WITH unaccent, french_stem;
+
 CREATE FUNCTION geoshop.update_product_tsvector()
     RETURNS trigger
     LANGUAGE 'plpgsql'
@@ -5,7 +10,7 @@ CREATE FUNCTION geoshop.update_product_tsvector()
     VOLATILE NOT LEAKPROOF
 AS $BODY$
     BEGIN
-        NEW.ts := to_tsvector('french', NEW.label || ' ' || (
+        NEW.ts := to_tsvector('fr', NEW.label || ' ' || (
             SELECT concat(description_long, ' ' , description_short) FROM geoshop.metadata WHERE id = NEW.metadata_id
         ));
         RETURN NEW;
@@ -20,7 +25,7 @@ CREATE FUNCTION geoshop.update_metadata_tsvector()
 AS $BODY$
     BEGIN
         UPDATE geoshop.product p
-        SET ts = to_tsvector('french', label || ' ' || concat(NEW.description_long, ' ' , NEW.description_short))
+        SET ts = to_tsvector('fr', label || ' ' || concat(NEW.description_long, ' ' , NEW.description_short))
         WHERE NEW.id = p.metadata_id;
         RETURN NEW;
     END;