diff --git a/backend/geonature/core/gn_synthese/synthese_config.py b/backend/geonature/core/gn_synthese/synthese_config.py
index d838c937c4..84caecfcc6 100644
--- a/backend/geonature/core/gn_synthese/synthese_config.py
+++ b/backend/geonature/core/gn_synthese/synthese_config.py
@@ -15,6 +15,7 @@
     "regne",
     "group1_inpn",
     "group2_inpn",
+    "group3_inpn",
     "classe",
     "ordre",
     "famille",
diff --git a/backend/geonature/core/gn_synthese/utils/query_select_sqla.py b/backend/geonature/core/gn_synthese/utils/query_select_sqla.py
index 7ecf1f5267..7f970845a2 100644
--- a/backend/geonature/core/gn_synthese/utils/query_select_sqla.py
+++ b/backend/geonature/core/gn_synthese/utils/query_select_sqla.py
@@ -255,12 +255,6 @@ def filter_taxonomy(self):
         if len(cd_ref_childs) > 0:
             self.add_join(Taxref, Taxref.cd_nom, self.model.cd_nom)
             self.query = self.query.where(Taxref.cd_ref.in_(cd_ref_childs))
-        if "taxonomy_group2_inpn" in self.filters:
-            self.add_join(Taxref, Taxref.cd_nom, self.model.cd_nom)
-            self.query = self.query.where(
-                Taxref.group2_inpn.in_(self.filters.pop("taxonomy_group2_inpn"))
-            )
-
         if "taxonomy_id_hab" in self.filters:
             self.add_join(Taxref, Taxref.cd_nom, self.model.cd_nom)
             self.query = self.query.where(
@@ -272,6 +266,13 @@ def filter_taxonomy(self):
         red_list_filters = {}
 
         for colname, value in self.filters.items():
+            if colname.startswith("taxonomy_group"):
+                # colname = group type (group2 or group3 inpn)
+                # value = list of group values
+                colname = colname.split("taxonomy_")[-1]
+                self.add_join(Taxref, Taxref.cd_nom, self.model.cd_nom)
+                self.query = self.query.where(getattr(Taxref, colname).in_(value))
+
             if colname.startswith("taxhub_attribut"):
                 self.add_join(Taxref, Taxref.cd_nom, self.model.cd_nom)
                 taxhub_id_attr = colname[16:]
diff --git a/backend/geonature/migrations/versions/9f4db1786c22_add_group3_inpn_to_synthese_views.py b/backend/geonature/migrations/versions/9f4db1786c22_add_group3_inpn_to_synthese_views.py
new file mode 100644
index 0000000000..af63ece1a5
--- /dev/null
+++ b/backend/geonature/migrations/versions/9f4db1786c22_add_group3_inpn_to_synthese_views.py
@@ -0,0 +1,331 @@
+"""add group3 inpn to synthese views
+
+Revision ID: 9f4db1786c22
+Revises: 446e902a14e7
+Create Date: 2023-07-21 14:15:23.311469
+
+"""
+
+from alembic import op
+from sqlalchemy.sql import text
+
+# revision identifiers, used by Alembic.
+revision = "9f4db1786c22"
+down_revision = "5a2c9c65129f"
+branch_labels = None
+depends_on = ("c4415009f164",)  # Taxref v15 db structure
+
+
+def upgrade():
+    op.execute(
+        """
+        DROP VIEW gn_synthese.v_synthese_for_export;
+        """
+    )
+
+    op.execute(
+        """
+CREATE VIEW gn_synthese.v_synthese_for_export AS
+ SELECT 
+    s.id_synthese AS id_synthese,
+    s.date_min::date AS date_debut,
+    s.date_max::date AS date_fin,
+    s.date_min::time AS heure_debut,
+    s.date_max::time AS heure_fin,
+    t.cd_nom AS cd_nom,
+    t.cd_ref AS cd_ref,
+    t.nom_valide AS nom_valide,
+    t.nom_vern as nom_vernaculaire,
+    s.nom_cite AS nom_cite,
+    t.regne AS regne,
+    t.group1_inpn AS group1_inpn,
+    t.group2_inpn AS group2_inpn,
+    t.group3_inpn AS group3_inpn,
+    t.classe AS classe,
+    t.ordre AS ordre,
+    t.famille AS famille,
+    t.id_rang AS rang_taxo,
+    s.count_min AS nombre_min,
+    s.count_max AS nombre_max,
+    s.altitude_min AS alti_min,
+    s.altitude_max AS alti_max,
+    s.depth_min AS prof_min,
+    s.depth_max AS prof_max,
+    s.observers AS observateurs,
+    s.id_digitiser AS id_digitiser, -- Utile pour le CRUVED
+    s.determiner AS determinateur,
+    communes AS communes,
+    public.ST_astext(s.the_geom_4326) AS geometrie_wkt_4326,
+    public.ST_x(s.the_geom_point) AS x_centroid_4326,
+    public.ST_y(s.the_geom_point) AS y_centroid_4326,
+    public.ST_asgeojson(s.the_geom_4326) AS geojson_4326,-- Utile pour la génération de l'export en SHP
+    public.ST_asgeojson(s.the_geom_local) AS geojson_local,-- Utile pour la génération de l'export en SHP
+    s.place_name AS nom_lieu,
+    s.comment_context AS comment_releve,
+    s.comment_description AS comment_occurrence,
+    s.validator AS validateur,
+    n21.label_default AS niveau_validation,
+    s.meta_validation_date as date_validation,
+    s.validation_comment AS comment_validation,
+    s.digital_proof AS preuve_numerique_url,
+    s.non_digital_proof AS preuve_non_numerique,
+    d.dataset_name AS jdd_nom,
+    d.unique_dataset_id AS jdd_uuid,
+    d.id_dataset AS jdd_id, -- Utile pour le CRUVED
+    af.acquisition_framework_name AS ca_nom,
+    af.unique_acquisition_framework_id AS ca_uuid,
+    d.id_acquisition_framework AS ca_id,
+    s.cd_hab AS cd_habref,
+    hab.lb_code AS cd_habitat,
+    hab.lb_hab_fr AS nom_habitat,
+    s.precision as precision_geographique,
+    n1.label_default AS nature_objet_geo,
+    n2.label_default AS type_regroupement,
+    s.grp_method AS methode_regroupement,
+    n3.label_default AS technique_observation,
+    n5.label_default AS biologique_statut,
+    n6.label_default AS etat_biologique,
+    n22.label_default AS biogeographique_statut,
+    n7.label_default AS naturalite,
+    n8.label_default AS preuve_existante,
+    n9.label_default AS niveau_precision_diffusion,
+    n10.label_default AS stade_vie,
+    n11.label_default AS sexe,
+    n12.label_default AS objet_denombrement,
+    n13.label_default AS type_denombrement,
+    n14.label_default AS niveau_sensibilite,
+    n15.label_default AS statut_observation,
+    n16.label_default AS floutage_dee,
+    n17.label_default AS statut_source,
+    n18.label_default AS type_info_geo,
+    n19.label_default AS methode_determination,
+    n20.label_default AS comportement,
+    s.reference_biblio AS reference_biblio,
+    s.entity_source_pk_value AS id_origine,
+    s.unique_id_sinp AS uuid_perm_sinp,
+    s.unique_id_sinp_grp AS uuid_perm_grp_sinp,
+    s.meta_create_date AS date_creation,
+    s.meta_update_date AS date_modification,
+    s.additional_data as champs_additionnels,
+    COALESCE(s.meta_update_date, s.meta_create_date) AS derniere_action
+   FROM gn_synthese.synthese s
+     JOIN taxonomie.taxref t ON t.cd_nom = s.cd_nom
+     JOIN gn_meta.t_datasets d ON d.id_dataset = s.id_dataset
+     JOIN gn_meta.t_acquisition_frameworks af ON d.id_acquisition_framework = af.id_acquisition_framework
+     LEFT OUTER JOIN (
+        SELECT id_synthese, string_agg(DISTINCT area_name, ', ') AS communes
+        FROM gn_synthese.cor_area_synthese cas
+        LEFT OUTER JOIN ref_geo.l_areas a_1 ON cas.id_area = a_1.id_area
+        JOIN ref_geo.bib_areas_types ta ON ta.id_type = a_1.id_type AND ta.type_code ='COM'
+        GROUP BY id_synthese 
+     ) sa ON sa.id_synthese = s.id_synthese
+     LEFT JOIN ref_nomenclatures.t_nomenclatures n1 ON s.id_nomenclature_geo_object_nature = n1.id_nomenclature
+     LEFT JOIN ref_nomenclatures.t_nomenclatures n2 ON s.id_nomenclature_grp_typ = n2.id_nomenclature
+     LEFT JOIN ref_nomenclatures.t_nomenclatures n3 ON s.id_nomenclature_obs_technique = n3.id_nomenclature
+     LEFT JOIN ref_nomenclatures.t_nomenclatures n5 ON s.id_nomenclature_bio_status = n5.id_nomenclature
+     LEFT JOIN ref_nomenclatures.t_nomenclatures n6 ON s.id_nomenclature_bio_condition = n6.id_nomenclature
+     LEFT JOIN ref_nomenclatures.t_nomenclatures n7 ON s.id_nomenclature_naturalness = n7.id_nomenclature
+     LEFT JOIN ref_nomenclatures.t_nomenclatures n8 ON s.id_nomenclature_exist_proof = n8.id_nomenclature
+     LEFT JOIN ref_nomenclatures.t_nomenclatures n9 ON s.id_nomenclature_diffusion_level = n9.id_nomenclature
+     LEFT JOIN ref_nomenclatures.t_nomenclatures n10 ON s.id_nomenclature_life_stage = n10.id_nomenclature
+     LEFT JOIN ref_nomenclatures.t_nomenclatures n11 ON s.id_nomenclature_sex = n11.id_nomenclature
+     LEFT JOIN ref_nomenclatures.t_nomenclatures n12 ON s.id_nomenclature_obj_count = n12.id_nomenclature
+     LEFT JOIN ref_nomenclatures.t_nomenclatures n13 ON s.id_nomenclature_type_count = n13.id_nomenclature
+     LEFT JOIN ref_nomenclatures.t_nomenclatures n14 ON s.id_nomenclature_sensitivity = n14.id_nomenclature
+     LEFT JOIN ref_nomenclatures.t_nomenclatures n15 ON s.id_nomenclature_observation_status = n15.id_nomenclature
+     LEFT JOIN ref_nomenclatures.t_nomenclatures n16 ON s.id_nomenclature_blurring = n16.id_nomenclature
+     LEFT JOIN ref_nomenclatures.t_nomenclatures n17 ON s.id_nomenclature_source_status = n17.id_nomenclature
+     LEFT JOIN ref_nomenclatures.t_nomenclatures n18 ON s.id_nomenclature_info_geo_type = n18.id_nomenclature
+     LEFT JOIN ref_nomenclatures.t_nomenclatures n19 ON s.id_nomenclature_determination_method = n19.id_nomenclature
+     LEFT JOIN ref_nomenclatures.t_nomenclatures n20 ON s.id_nomenclature_behaviour = n20.id_nomenclature
+     LEFT JOIN ref_nomenclatures.t_nomenclatures n21 ON s.id_nomenclature_valid_status = n21.id_nomenclature
+     LEFT JOIN ref_nomenclatures.t_nomenclatures n22 ON s.id_nomenclature_biogeo_status = n22.id_nomenclature
+     LEFT JOIN ref_habitats.habref hab ON hab.cd_hab = s.cd_hab;
+"""
+    )
+
+    op.execute(
+        """
+        DROP VIEW gn_synthese.v_synthese_taxon_for_export_view;
+        """
+    )
+    op.execute(
+        """
+-- Vue export des taxons de la synthèse
+-- Première version qui reste à affiner/étoffer
+CREATE VIEW gn_synthese.v_synthese_taxon_for_export_view AS
+ SELECT DISTINCT
+    ref.nom_valide,
+    ref.cd_ref,
+    ref.nom_vern,
+    ref.group1_inpn,
+    ref.group2_inpn,
+    ref.group3_inpn,
+    ref.regne,
+    ref.phylum,
+    ref.classe,
+    ref.ordre,
+    ref.famille,
+    ref.id_rang
+FROM gn_synthese.synthese  s
+JOIN taxonomie.taxref t ON s.cd_nom = t.cd_nom
+JOIN taxonomie.taxref ref ON t.cd_ref = ref.cd_nom;
+"""
+    )
+
+
+def downgrade():
+    op.execute(
+        """
+        DROP VIEW gn_synthese.v_synthese_for_export;
+        """
+    )
+
+    op.execute(
+        """
+CREATE VIEW gn_synthese.v_synthese_for_export AS
+ SELECT 
+    s.id_synthese AS id_synthese,
+    s.date_min::date AS date_debut,
+    s.date_max::date AS date_fin,
+    s.date_min::time AS heure_debut,
+    s.date_max::time AS heure_fin,
+    t.cd_nom AS cd_nom,
+    t.cd_ref AS cd_ref,
+    t.nom_valide AS nom_valide,
+    t.nom_vern as nom_vernaculaire,
+    s.nom_cite AS nom_cite,
+    t.regne AS regne,
+    t.group1_inpn AS group1_inpn,
+    t.group2_inpn AS group2_inpn,
+    t.classe AS classe,
+    t.ordre AS ordre,
+    t.famille AS famille,
+    t.id_rang AS rang_taxo,
+    s.count_min AS nombre_min,
+    s.count_max AS nombre_max,
+    s.altitude_min AS alti_min,
+    s.altitude_max AS alti_max,
+    s.depth_min AS prof_min,
+    s.depth_max AS prof_max,
+    s.observers AS observateurs,
+    s.id_digitiser AS id_digitiser, -- Utile pour le CRUVED
+    s.determiner AS determinateur,
+    communes AS communes,
+    public.ST_astext(s.the_geom_4326) AS geometrie_wkt_4326,
+    public.ST_x(s.the_geom_point) AS x_centroid_4326,
+    public.ST_y(s.the_geom_point) AS y_centroid_4326,
+    public.ST_asgeojson(s.the_geom_4326) AS geojson_4326,-- Utile pour la génération de l'export en SHP
+    public.ST_asgeojson(s.the_geom_local) AS geojson_local,-- Utile pour la génération de l'export en SHP
+    s.place_name AS nom_lieu,
+    s.comment_context AS comment_releve,
+    s.comment_description AS comment_occurrence,
+    s.validator AS validateur,
+    n21.label_default AS niveau_validation,
+    s.meta_validation_date as date_validation,
+    s.validation_comment AS comment_validation,
+    s.digital_proof AS preuve_numerique_url,
+    s.non_digital_proof AS preuve_non_numerique,
+    d.dataset_name AS jdd_nom,
+    d.unique_dataset_id AS jdd_uuid,
+    d.id_dataset AS jdd_id, -- Utile pour le CRUVED
+    af.acquisition_framework_name AS ca_nom,
+    af.unique_acquisition_framework_id AS ca_uuid,
+    d.id_acquisition_framework AS ca_id,
+    s.cd_hab AS cd_habref,
+    hab.lb_code AS cd_habitat,
+    hab.lb_hab_fr AS nom_habitat,
+    s.precision as precision_geographique,
+    n1.label_default AS nature_objet_geo,
+    n2.label_default AS type_regroupement,
+    s.grp_method AS methode_regroupement,
+    n3.label_default AS technique_observation,
+    n5.label_default AS biologique_statut,
+    n6.label_default AS etat_biologique,
+    n22.label_default AS biogeographique_statut,
+    n7.label_default AS naturalite,
+    n8.label_default AS preuve_existante,
+    n9.label_default AS niveau_precision_diffusion,
+    n10.label_default AS stade_vie,
+    n11.label_default AS sexe,
+    n12.label_default AS objet_denombrement,
+    n13.label_default AS type_denombrement,
+    n14.label_default AS niveau_sensibilite,
+    n15.label_default AS statut_observation,
+    n16.label_default AS floutage_dee,
+    n17.label_default AS statut_source,
+    n18.label_default AS type_info_geo,
+    n19.label_default AS methode_determination,
+    n20.label_default AS comportement,
+    s.reference_biblio AS reference_biblio,
+    s.entity_source_pk_value AS id_origine,
+    s.unique_id_sinp AS uuid_perm_sinp,
+    s.unique_id_sinp_grp AS uuid_perm_grp_sinp,
+    s.meta_create_date AS date_creation,
+    s.meta_update_date AS date_modification,
+    s.additional_data as champs_additionnels,
+    COALESCE(s.meta_update_date, s.meta_create_date) AS derniere_action
+   FROM gn_synthese.synthese s
+     JOIN taxonomie.taxref t ON t.cd_nom = s.cd_nom
+     JOIN gn_meta.t_datasets d ON d.id_dataset = s.id_dataset
+     JOIN gn_meta.t_acquisition_frameworks af ON d.id_acquisition_framework = af.id_acquisition_framework
+     LEFT OUTER JOIN (
+        SELECT id_synthese, string_agg(DISTINCT area_name, ', ') AS communes
+        FROM gn_synthese.cor_area_synthese cas
+        LEFT OUTER JOIN ref_geo.l_areas a_1 ON cas.id_area = a_1.id_area
+        JOIN ref_geo.bib_areas_types ta ON ta.id_type = a_1.id_type AND ta.type_code ='COM'
+        GROUP BY id_synthese 
+     ) sa ON sa.id_synthese = s.id_synthese
+     LEFT JOIN ref_nomenclatures.t_nomenclatures n1 ON s.id_nomenclature_geo_object_nature = n1.id_nomenclature
+     LEFT JOIN ref_nomenclatures.t_nomenclatures n2 ON s.id_nomenclature_grp_typ = n2.id_nomenclature
+     LEFT JOIN ref_nomenclatures.t_nomenclatures n3 ON s.id_nomenclature_obs_technique = n3.id_nomenclature
+     LEFT JOIN ref_nomenclatures.t_nomenclatures n5 ON s.id_nomenclature_bio_status = n5.id_nomenclature
+     LEFT JOIN ref_nomenclatures.t_nomenclatures n6 ON s.id_nomenclature_bio_condition = n6.id_nomenclature
+     LEFT JOIN ref_nomenclatures.t_nomenclatures n7 ON s.id_nomenclature_naturalness = n7.id_nomenclature
+     LEFT JOIN ref_nomenclatures.t_nomenclatures n8 ON s.id_nomenclature_exist_proof = n8.id_nomenclature
+     LEFT JOIN ref_nomenclatures.t_nomenclatures n9 ON s.id_nomenclature_diffusion_level = n9.id_nomenclature
+     LEFT JOIN ref_nomenclatures.t_nomenclatures n10 ON s.id_nomenclature_life_stage = n10.id_nomenclature
+     LEFT JOIN ref_nomenclatures.t_nomenclatures n11 ON s.id_nomenclature_sex = n11.id_nomenclature
+     LEFT JOIN ref_nomenclatures.t_nomenclatures n12 ON s.id_nomenclature_obj_count = n12.id_nomenclature
+     LEFT JOIN ref_nomenclatures.t_nomenclatures n13 ON s.id_nomenclature_type_count = n13.id_nomenclature
+     LEFT JOIN ref_nomenclatures.t_nomenclatures n14 ON s.id_nomenclature_sensitivity = n14.id_nomenclature
+     LEFT JOIN ref_nomenclatures.t_nomenclatures n15 ON s.id_nomenclature_observation_status = n15.id_nomenclature
+     LEFT JOIN ref_nomenclatures.t_nomenclatures n16 ON s.id_nomenclature_blurring = n16.id_nomenclature
+     LEFT JOIN ref_nomenclatures.t_nomenclatures n17 ON s.id_nomenclature_source_status = n17.id_nomenclature
+     LEFT JOIN ref_nomenclatures.t_nomenclatures n18 ON s.id_nomenclature_info_geo_type = n18.id_nomenclature
+     LEFT JOIN ref_nomenclatures.t_nomenclatures n19 ON s.id_nomenclature_determination_method = n19.id_nomenclature
+     LEFT JOIN ref_nomenclatures.t_nomenclatures n20 ON s.id_nomenclature_behaviour = n20.id_nomenclature
+     LEFT JOIN ref_nomenclatures.t_nomenclatures n21 ON s.id_nomenclature_valid_status = n21.id_nomenclature
+     LEFT JOIN ref_nomenclatures.t_nomenclatures n22 ON s.id_nomenclature_biogeo_status = n22.id_nomenclature
+     LEFT JOIN ref_habitats.habref hab ON hab.cd_hab = s.cd_hab;
+
+"""
+    )
+
+    op.execute(
+        """
+        DROP VIEW gn_synthese.v_synthese_taxon_for_export_view;
+        """
+    )
+    op.execute(
+        """
+-- Vue export des taxons de la synthèse
+-- Première version qui reste à affiner/étoffer
+CREATE VIEW gn_synthese.v_synthese_taxon_for_export_view AS
+ SELECT DISTINCT
+    ref.nom_valide,
+    ref.cd_ref,
+    ref.nom_vern,
+    ref.group1_inpn,
+    ref.group2_inpn,
+    ref.regne,
+    ref.phylum,
+    ref.classe,
+    ref.ordre,
+    ref.famille,
+    ref.id_rang
+FROM gn_synthese.synthese  s
+JOIN taxonomie.taxref t ON s.cd_nom = t.cd_nom
+JOIN taxonomie.taxref ref ON t.cd_ref = ref.cd_nom;
+"""
+    )
diff --git a/backend/geonature/tests/test_synthese.py b/backend/geonature/tests/test_synthese.py
index a0e0607e98..492bf09909 100644
--- a/backend/geonature/tests/test_synthese.py
+++ b/backend/geonature/tests/test_synthese.py
@@ -512,6 +512,31 @@ def test_get_observations_for_web_param_column_frontend(
             set(feature["properties"].keys()) == expected_columns for feature in data["features"]
         )
 
+    @pytest.mark.parametrize(
+        "group_inpn",
+        [
+            ("group2_inpn"),
+            ("group3_inpn"),
+        ],
+    )
+    def test_get_observations_for_web_filter_group_inpn(self, users, synthese_data, group_inpn):
+        obs = synthese_data["obs1"]
+        taxref_from_cd_nom = Taxref.query.filter_by(cd_nom=obs.cd_nom).one()
+        group_from_taxref = getattr(taxref_from_cd_nom, group_inpn)
+        filter_name = "taxonomie_" + group_inpn
+
+        set_logged_user(self.client, users["self_user"])
+        response = self.client.get(
+            url_for("gn_synthese.get_observations_for_web"),
+            json={
+                filter_name: [group_from_taxref],
+            },
+        )
+        response_json = response.json
+        assert obs.id_synthese in {
+            synthese["properties"]["id"] for synthese in response_json["features"]
+        }
+
     def test_export(self, users):
         set_logged_user(self.client, users["self_user"])
 
@@ -560,6 +585,7 @@ def test_export_observations(self, users, synthese_data, synthese_sensitive_data
             '"regne"',
             '"group1_inpn"',
             '"group2_inpn"',
+            '"group3_inpn"',
             '"classe"',
             '"ordre"',
             '"famille"',
@@ -736,6 +762,7 @@ def test_export_taxons(self, users, synthese_data, synthese_sensitive_data):
             '"nom_vern"',
             '"group1_inpn"',
             '"group2_inpn"',
+            '"group3_inpn"',
             '"regne"',
             '"phylum"',
             '"classe"',
@@ -761,7 +788,6 @@ def assert_export_taxons_results(user, set_expected_cd_ref):
             rows_data_response = response.data.decode("utf-8").split("\r\n")[0:-1]
             row_header = rows_data_response[0]
             rows_taxons_data_response = rows_data_response[1:]
-
             assert row_header.split(";") == expected_columns_exports
 
             nb_expected_cd_noms = len(set_expected_cd_ref)
diff --git a/contrib/occtax/frontend/app/occtax-form/counting/counting.component.html b/contrib/occtax/frontend/app/occtax-form/counting/counting.component.html
index c2dc0c27d3..e0d7883920 100644
--- a/contrib/occtax/frontend/app/occtax-form/counting/counting.component.html
+++ b/contrib/occtax/frontend/app/occtax-form/counting/counting.component.html
@@ -8,7 +8,8 @@
       codeNomenclatureType="OBJ_DENBR"
       [parentFormControl]="form.get('id_nomenclature_obj_count')"
       [regne]="(occtaxFormOccurrenceService.taxref|async)?.regne"
-      [group2Inpn]="(occtaxFormOccurrenceService.taxref|async)?.group2_inpn">
+      [group2Inpn]="(occtaxFormOccurrenceService.taxref|async)?.group2_inpn"
+      [group3Inpn]="(occtaxFormOccurrenceService.taxref|async)?.group3_inpn">
     </pnx-nomenclature>
   </div>
   <div
@@ -21,7 +22,8 @@
       codeNomenclatureType="TYP_DENBR"
       [parentFormControl]="form.get('id_nomenclature_type_count')"
       [regne]="(occtaxFormOccurrenceService.taxref|async)?.regne"
-      [group2Inpn]="(occtaxFormOccurrenceService.taxref|async)?.group2_inpn">
+      [group2Inpn]="(occtaxFormOccurrenceService.taxref|async)?.group2_inpn"
+      [group3Inpn]="(occtaxFormOccurrenceService.taxref|async)?.group3_inpn">
     </pnx-nomenclature>
   </div>
 
@@ -83,7 +85,8 @@
       codeNomenclatureType="STADE_VIE"
       [parentFormControl]="form.get('id_nomenclature_life_stage')"
       [regne]="(occtaxFormOccurrenceService.taxref|async)?.regne"
-      [group2Inpn]="(occtaxFormOccurrenceService.taxref|async)?.group2_inpn">
+      [group2Inpn]="(occtaxFormOccurrenceService.taxref|async)?.group2_inpn"
+      [group3Inpn]="(occtaxFormOccurrenceService.taxref|async)?.group3_inpn">
     </pnx-nomenclature>
     <small
       *ngIf="form.get('id_nomenclature_life_stage').hasError('required') && form.get('id_nomenclature_life_stage').touched"
@@ -102,7 +105,8 @@
       codeNomenclatureType="SEXE"
       [parentFormControl]="form.get('id_nomenclature_sex')"
       [regne]="(occtaxFormOccurrenceService.taxref|async)?.regne"
-      [group2Inpn]="(occtaxFormOccurrenceService.taxref|async)?.group2_inpn">
+      [group2Inpn]="(occtaxFormOccurrenceService.taxref|async)?.group2_inpn"
+      [group3Inpn]="(occtaxFormOccurrenceService.taxref|async)?.group3_inpn">
     </pnx-nomenclature>
     <small
       *ngIf="form.get('id_nomenclature_sex').hasError('required') && form.get('id_nomenclature_sex').touched"
diff --git a/contrib/occtax/frontend/app/occtax-form/occurrence/occurrence.component.html b/contrib/occtax/frontend/app/occtax-form/occurrence/occurrence.component.html
index ce89cf09b0..11f53d0093 100644
--- a/contrib/occtax/frontend/app/occtax-form/occurrence/occurrence.component.html
+++ b/contrib/occtax/frontend/app/occtax-form/occurrence/occurrence.component.html
@@ -55,6 +55,7 @@ <h5> Ajout d'un taxon </h5>
       codeNomenclatureType="METH_OBS"
       [regne]="taxref?.regne"
       [group2Inpn]="taxref?.group2_inpn"
+      [group3Inpn]="taxref?.group3_inpn"
       data-qa="pnx-nomenclature-meth-obs"
     >
     </pnx-nomenclature>
@@ -77,6 +78,7 @@ <h5> Ajout d'un taxon </h5>
       codeNomenclatureType="ETA_BIO"
       [regne]="taxref?.regne"
       [group2Inpn]="taxref?.group2_inpn"
+      [group3Inpn]="taxref?.group3_inpn"
       data-qa="pnx-nomenclature-eta-bio"
     >
     </pnx-nomenclature>
@@ -135,7 +137,8 @@ <h5> Ajout d'un taxon </h5>
           [parentFormControl]="occurrenceForm.get('id_nomenclature_determination_method')"
           codeNomenclatureType="METH_DETERMIN" 
           [regne]="taxref?.regne"
-          [group2Inpn]="taxref?.group2_inpn">
+          [group2Inpn]="taxref?.group2_inpn"
+          [group3Inpn]="taxref?.group3_inpn">
         </pnx-nomenclature>
         <small
           *ngIf="occurrenceForm.get('id_nomenclature_determination_method').hasError('required') && occurrenceForm.get('id_nomenclature_determination_method').touched"
@@ -176,6 +179,7 @@ <h5> Ajout d'un taxon </h5>
         codeNomenclatureType="NATURALITE"
         [regne]="taxref?.regne"
         [group2Inpn]="taxref?.group2_inpn"
+        [group3Inpn]="taxref?.group3_inpn"
       >
       </pnx-nomenclature>
     </div>
@@ -194,7 +198,8 @@ <h5> Ajout d'un taxon </h5>
         [parentFormControl]="occurrenceForm.get('id_nomenclature_bio_status')"
         codeNomenclatureType="STATUT_BIO"
         [regne]="taxref?.regne"
-        [group2Inpn]="taxref?.group2_inpn">
+        [group2Inpn]="taxref?.group2_inpn"
+        [group3Inpn]="taxref?.group3_inpn">
       </pnx-nomenclature>
     </div>
 
@@ -208,6 +213,7 @@ <h5> Ajout d'un taxon </h5>
         codeNomenclatureType="OCC_COMPORTEMENT"
         [regne]="taxref?.regne"
         [group2Inpn]="taxref?.group2_inpn"
+        [group3Inpn]="taxref?.group3_inpn"
       >
       </pnx-nomenclature>
     </div>
@@ -247,6 +253,7 @@ <h5> Ajout d'un taxon </h5>
         codeNomenclatureType="PREUVE_EXIST"
         [regne]="taxref?.regne"
         [group2Inpn]="taxref?.group2_inpn"
+        [group3Inpn]="taxref?.group3_inpn"
         (labelsLoaded)="setExistProofData($event)"
       >
       </pnx-nomenclature>
diff --git a/frontend/src/app/GN2CommonModule/form/data-form.service.ts b/frontend/src/app/GN2CommonModule/form/data-form.service.ts
index 390c790c7f..b8c269b651 100644
--- a/frontend/src/app/GN2CommonModule/form/data-form.service.ts
+++ b/frontend/src/app/GN2CommonModule/form/data-form.service.ts
@@ -35,6 +35,7 @@ export class DataFormService {
     codeNomenclatureType: string,
     regne?: string,
     group2_inpn?: string,
+    group3_inpn?: string,
     filters?: any
   ) {
     let params: HttpParams = new HttpParams();
@@ -42,6 +43,9 @@ export class DataFormService {
     group2_inpn
       ? (params = params.set('group2_inpn', group2_inpn))
       : (params = params.set('group2_inpn', ''));
+    group3_inpn
+      ? (params = params.set('group3_inpn', group3_inpn))
+      : (params = params.set('group3_inpn', ''));
     if (filters['orderby']) {
       params = params.set('orderby', filters['orderby']);
     }
@@ -223,6 +227,10 @@ export class DataFormService {
     return this._http.get<any>(`${this.config.API_TAXHUB}/taxref/regnewithgroupe2`);
   }
 
+  getGroup3Inpn() {
+    return this._http.get<any>(`${this.config.API_TAXHUB}/taxref/groupe3_inpn`);
+  }
+
   getTaxhubBibAttributes() {
     return this._http.get<any>(`${this.config.API_TAXHUB}/bibattributs/`);
   }
diff --git a/frontend/src/app/GN2CommonModule/form/nomenclature/nomenclature.component.ts b/frontend/src/app/GN2CommonModule/form/nomenclature/nomenclature.component.ts
index 8b6e3c6610..c334cfbc38 100644
--- a/frontend/src/app/GN2CommonModule/form/nomenclature/nomenclature.component.ts
+++ b/frontend/src/app/GN2CommonModule/form/nomenclature/nomenclature.component.ts
@@ -64,6 +64,10 @@ export class NomenclatureComponent
    * Filter group 2 INPN
    */
   @Input() group2Inpn: string;
+  /**
+   * Filter group 3 INPN
+   */
+  @Input() group3Inpn?: string;
   /**
    * Attribut de l'objet nomenclature renvoyé au formControl (facultatif, par défaut ``id_nomenclature``).
    * Valeur possible: n'importequel attribut de l'objet ``nomenclature`` renvoyé par l'API
@@ -128,7 +132,9 @@ export class NomenclatureComponent
     if (
       changes.regne === undefined &&
       changes.group2Inpn !== undefined &&
-      !changes.group2Inpn.firstChange
+      !changes.group2Inpn.firstChange &&
+      changes.group3Inpn !== undefined &&
+      !changes.group3Inpn.firstChange
     ) {
       this.initLabels();
     }
@@ -137,7 +143,13 @@ export class NomenclatureComponent
   initLabels() {
     const filters = { orderby: 'label_default', cd_nomenclature: this.cdNomenclatures };
     this._dfService
-      .getNomenclature(this.codeNomenclatureType, this.regne, this.group2Inpn, filters)
+      .getNomenclature(
+        this.codeNomenclatureType,
+        this.regne,
+        this.group2Inpn,
+        this.group3Inpn,
+        filters
+      )
       .subscribe((data) => {
         this.labels = data.values;
         this.savedLabels = data.values;
diff --git a/frontend/src/app/GN2CommonModule/form/synthese-form/advanced-form/synthese-advanced-form-store.service.ts b/frontend/src/app/GN2CommonModule/form/synthese-form/advanced-form/synthese-advanced-form-store.service.ts
index 5769d2fe81..a5ed63fcdb 100644
--- a/frontend/src/app/GN2CommonModule/form/synthese-form/advanced-form/synthese-advanced-form-store.service.ts
+++ b/frontend/src/app/GN2CommonModule/form/synthese-form/advanced-form/synthese-advanced-form-store.service.ts
@@ -19,6 +19,7 @@ export class TaxonAdvancedStoreService {
   public formBuilded: boolean;
   public taxonomyHab: Array<any>;
   public taxonomyGroup2Inpn: Array<any>;
+  public taxonomyGroup3Inpn: Array<any>;
   public redListsValues: any = {};
 
   constructor(
@@ -88,5 +89,9 @@ export class TaxonAdvancedStoreService {
       }
       this.taxonomyGroup2Inpn = all_groups;
     });
+
+    this._dataService.getGroup3Inpn().subscribe((data) => {
+      this.taxonomyGroup3Inpn = data.map((item) => ({ value: item }));
+    });
   }
 }
diff --git a/frontend/src/app/GN2CommonModule/form/synthese-form/advanced-form/synthese-advanced-form.component.html b/frontend/src/app/GN2CommonModule/form/synthese-form/advanced-form/synthese-advanced-form.component.html
index 857f6ef23e..a32c1d18df 100644
--- a/frontend/src/app/GN2CommonModule/form/synthese-form/advanced-form/synthese-advanced-form.component.html
+++ b/frontend/src/app/GN2CommonModule/form/synthese-form/advanced-form/synthese-advanced-form.component.html
@@ -164,6 +164,18 @@ <h5>Attributs TaxRef</h5>
         >
         </pnx-multiselect>
       </div>
+      <div class="form-group">
+        <pnx-multiselect
+          [values]="storeService.taxonomyGroup3Inpn"
+          [parentFormControl]="formService.searchForm.controls.taxonomy_group3_inpn"
+          keyLabel="value"
+          keyValue="value"
+          label="Groupe 3 INPN"
+          (onChange)="onTaxRefAttributsSelected($event.value)"
+          (onDelete)="onTaxRefAttributsDeleted($event.value.value)"
+        >
+        </pnx-multiselect>
+      </div>
     </div>
 
     <div *ngIf="storeService.formBuilded && storeService.taxhubAttributes.length > 0">
diff --git a/frontend/src/app/GN2CommonModule/form/synthese-form/synthese-form.service.ts b/frontend/src/app/GN2CommonModule/form/synthese-form/synthese-form.service.ts
index 4c4591341b..4635b6b128 100644
--- a/frontend/src/app/GN2CommonModule/form/synthese-form/synthese-form.service.ts
+++ b/frontend/src/app/GN2CommonModule/form/synthese-form/synthese-form.service.ts
@@ -88,6 +88,7 @@ export class SyntheseFormService {
       taxonomy_lr: null,
       taxonomy_id_hab: null,
       taxonomy_group2_inpn: null,
+      taxonomy_group3_inpn: null,
       taxon_rank: null,
     });
 
diff --git a/frontend/src/app/metadataModule/services/actor-form.service.ts b/frontend/src/app/metadataModule/services/actor-form.service.ts
index b00457b58a..016edf23f4 100644
--- a/frontend/src/app/metadataModule/services/actor-form.service.ts
+++ b/frontend/src/app/metadataModule/services/actor-form.service.ts
@@ -54,7 +54,7 @@ export class ActorFormService {
     this.dfs.getRoles({ group: false }).subscribe((roles: any[]) => this._roles.next(roles));
 
     this.dfs
-      .getNomenclature('ROLE_ACTEUR', null, null, { orderby: 'label_default' })
+      .getNomenclature('ROLE_ACTEUR', null, null, null, { orderby: 'label_default' })
       .pipe(map((res: any) => res.values))
       .subscribe((role_types: any[]) => this._role_types.next(role_types));
   }