diff --git a/src/bonsai/bonsai/bim/module/pset/data.py b/src/bonsai/bonsai/bim/module/pset/data.py
index b71a7fabb6..ab89d67b31 100644
--- a/src/bonsai/bonsai/bim/module/pset/data.py
+++ b/src/bonsai/bonsai/bim/module/pset/data.py
@@ -117,7 +117,10 @@ class ObjectPsetsData(Data):
         if not element:
             return []
         psets = bonsai.bim.schema.ifc.psetqto.get_applicable(
-            element.is_a(), ifcopenshell.util.element.get_predefined_type(element), pset_only=True
+            element.is_a(),
+            ifcopenshell.util.element.get_predefined_type(element),
+            pset_only=True,
+            schema=tool.Ifc.get_schema(),
         )
         psetnames = cls.format_pset_enum(psets)
         assigned_names = ifcopenshell.util.element.get_psets(element, psets_only=True, should_inherit=False).keys()
@@ -130,7 +133,10 @@ class ObjectPsetsData(Data):
         if not element:
             return []
         qtos = bonsai.bim.schema.ifc.psetqto.get_applicable(
-            element.is_a(), ifcopenshell.util.element.get_predefined_type(element), qto_only=True
+            element.is_a(),
+            ifcopenshell.util.element.get_predefined_type(element),
+            qto_only=True,
+            schema=tool.Ifc.get_schema(),
         )
         return cls.format_pset_enum(qtos)
 
@@ -188,7 +194,9 @@ class MaterialPsetsData(Data):
             if material.ifc_definition_id:
                 material = tool.Ifc.get().by_id(material.ifc_definition_id)
                 category = getattr(material, "Category", None) or None
-                psets = bonsai.bim.schema.ifc.psetqto.get_applicable(props.material_type, category, pset_only=True)
+                psets = bonsai.bim.schema.ifc.psetqto.get_applicable(
+                    props.material_type, category, pset_only=True, schema=tool.Ifc.get_schema()
+                )
                 psetnames = cls.format_pset_enum(psets)
                 assigned_names = ifcopenshell.util.element.get_psets(
                     material, psets_only=True, should_inherit=False
diff --git a/src/bonsai/bonsai/bim/module/pset/prop.py b/src/bonsai/bonsai/bim/module/pset/prop.py
index 1edf364167..2014ff1bd6 100644
--- a/src/bonsai/bonsai/bim/module/pset/prop.py
+++ b/src/bonsai/bonsai/bim/module/pset/prop.py
@@ -105,7 +105,7 @@ def get_material_set_pset_names(self, context):
     if not ifc_class or "Set" not in ifc_class:
         return []
     if ifc_class not in psetnames:
-        psets = bonsai.bim.schema.ifc.psetqto.get_applicable(ifc_class, pset_only=True)
+        psets = bonsai.bim.schema.ifc.psetqto.get_applicable(ifc_class, pset_only=True, schema=tool.Ifc.get_schema())
         psetnames[ifc_class] = blender_formatted_enum_from_psets(psets)
     return psetnames[ifc_class]
 
@@ -117,7 +117,7 @@ def get_material_set_item_pset_names(self, context):
         return []
     ifc_class = tool.Ifc.get().by_id(ifc_definition_id).is_a()
     if ifc_class not in psetnames:
-        psets = bonsai.bim.schema.ifc.psetqto.get_applicable(ifc_class, pset_only=True)
+        psets = bonsai.bim.schema.ifc.psetqto.get_applicable(ifc_class, pset_only=True, schema=tool.Ifc.get_schema())
         psetnames[ifc_class] = blender_formatted_enum_from_psets(psets)
     return psetnames[ifc_class]
 
@@ -126,7 +126,7 @@ def get_task_qto_names(self, context):
     global qtonames
     ifc_class = "IfcTask"
     if ifc_class not in qtonames:
-        psets = bonsai.bim.schema.ifc.psetqto.get_applicable(ifc_class, qto_only=True)
+        psets = bonsai.bim.schema.ifc.psetqto.get_applicable(ifc_class, qto_only=True, schema=tool.Ifc.get_schema())
         qtonames[ifc_class] = blender_formatted_enum_from_psets(psets)
     return qtonames[ifc_class]
 
@@ -137,7 +137,7 @@ def get_resource_pset_names(self, context):
     rtprops = context.scene.BIMResourceTreeProperties
     ifc_class = IfcStore.get_file().by_id(rtprops.resources[rprops.active_resource_index].ifc_definition_id).is_a()
     if ifc_class not in psetnames:
-        psets = bonsai.bim.schema.ifc.psetqto.get_applicable(ifc_class, pset_only=True)
+        psets = bonsai.bim.schema.ifc.psetqto.get_applicable(ifc_class, pset_only=True, schema=tool.Ifc.get_schema())
         psetnames[ifc_class] = blender_formatted_enum_from_psets(psets)
     return psetnames[ifc_class]
 
@@ -148,7 +148,7 @@ def get_resource_qto_names(self, context):
     rtprops = context.scene.BIMResourceTreeProperties
     ifc_class = IfcStore.get_file().by_id(rtprops.resources[rprops.active_resource_index].ifc_definition_id).is_a()
     if ifc_class not in qtonames:
-        psets = bonsai.bim.schema.ifc.psetqto.get_applicable(ifc_class, qto_only=True)
+        psets = bonsai.bim.schema.ifc.psetqto.get_applicable(ifc_class, qto_only=True, schema=tool.Ifc.get_schema())
         qtonames[ifc_class] = blender_formatted_enum_from_psets(psets)
     return qtonames[ifc_class]
 
@@ -157,7 +157,7 @@ def get_group_pset_names(self, context):
     global psetnames
     ifc_class = "IfcGroup"
     if ifc_class not in psetnames:
-        psets = bonsai.bim.schema.ifc.psetqto.get_applicable(ifc_class, pset_only=True)
+        psets = bonsai.bim.schema.ifc.psetqto.get_applicable(ifc_class, pset_only=True, schema=tool.Ifc.get_schema())
         psetnames[ifc_class] = blender_formatted_enum_from_psets(psets)
     return psetnames[ifc_class]
 
@@ -166,7 +166,7 @@ def get_group_qto_names(self, context):
     global qtonames
     ifc_class = "IfcGroup"
     if ifc_class not in qtonames:
-        psets = bonsai.bim.schema.ifc.psetqto.get_applicable(ifc_class, qto_only=True)
+        psets = bonsai.bim.schema.ifc.psetqto.get_applicable(ifc_class, qto_only=True, schema=tool.Ifc.get_schema())
         qtonames[ifc_class] = blender_formatted_enum_from_psets(psets)
     return qtonames[ifc_class]
 
@@ -176,7 +176,7 @@ def get_profile_pset_names(self, context):
     pprops = context.scene.BIMProfileProperties
     ifc_class = IfcStore.get_file().by_id(pprops.profiles[pprops.active_profile_index].ifc_definition_id).is_a()
     if ifc_class not in psetnames:
-        psets = bonsai.bim.schema.ifc.psetqto.get_applicable(ifc_class, pset_only=True)
+        psets = bonsai.bim.schema.ifc.psetqto.get_applicable(ifc_class, pset_only=True, schema=tool.Ifc.get_schema())
         psetnames[ifc_class] = blender_formatted_enum_from_psets(psets)
     return psetnames[ifc_class]
 
@@ -185,7 +185,7 @@ def get_work_schedule_pset_names(self, context):
     global psetnames
     ifc_class = "IfcWorkSchedule"
     if ifc_class not in psetnames:
-        psets = bonsai.bim.schema.ifc.psetqto.get_applicable(ifc_class, pset_only=True)
+        psets = bonsai.bim.schema.ifc.psetqto.get_applicable(ifc_class, pset_only=True, schema=tool.Ifc.get_schema())
         psetnames[ifc_class] = blender_formatted_enum_from_psets(psets)
     return psetnames[ifc_class]
 
diff --git a/src/bonsai/bonsai/bim/module/root/operator.py b/src/bonsai/bonsai/bim/module/root/operator.py
index 9c82d71c97..3579f0b89d 100644
--- a/src/bonsai/bonsai/bim/module/root/operator.py
+++ b/src/bonsai/bonsai/bim/module/root/operator.py
@@ -97,7 +97,7 @@ class ReassignClass(bpy.types.Operator, tool.Ifc.Operator):
         root_props = context.scene.BIMRootProperties
         ifc_product: str = root_props.ifc_product
         ifc_class: str = root_props.ifc_class
-        type_ifc_class = next(iter(ifcopenshell.util.type.get_applicable_types(ifc_class)), None)
+        type_ifc_class = next(iter(ifcopenshell.util.type.get_applicable_types(ifc_class, self.file.schema)), None)
 
         predefined_type = root_props.ifc_predefined_type
         if predefined_type == "USERDEFINED":
diff --git a/src/bonsai/bonsai/bim/module/root/prop.py b/src/bonsai/bonsai/bim/module/root/prop.py
index 9e4e4ab1fc..5243d95c03 100644
--- a/src/bonsai/bonsai/bim/module/root/prop.py
+++ b/src/bonsai/bonsai/bim/module/root/prop.py
@@ -67,11 +67,12 @@ def refresh_classes(self, context):
         self.representation_template = "OBJ"
         self.representation_obj = obj
 
+    ifc_file = tool.Ifc.get()
     # When switching between ElementType and Element, keep the same class and predefined type if possible
     if self.ifc_product == "IfcElement":
-        ifc_class = next(iter(ifcopenshell.util.type.get_applicable_entities(old_class)), None)
+        ifc_class = next(iter(ifcopenshell.util.type.get_applicable_entities(old_class, ifc_file.schema)), None)
     elif self.ifc_product == "IfcElementType":
-        ifc_class = next(iter(ifcopenshell.util.type.get_applicable_types(old_class)), None)
+        ifc_class = next(iter(ifcopenshell.util.type.get_applicable_types(old_class, ifc_file.schema)), None)
     else:
         return
     if ifc_class:
diff --git a/src/bonsai/bonsai/tool/pset.py b/src/bonsai/bonsai/tool/pset.py
index bcac21d7ca..39e4b0d721 100644
--- a/src/bonsai/bonsai/tool/pset.py
+++ b/src/bonsai/bonsai/tool/pset.py
@@ -81,7 +81,9 @@ class Pset(bonsai.core.tool.Pset):
             predefined_type = ifcopenshell.util.element.get_predefined_type(element)
         return bool(
             pset_name
-            in bonsai.bim.schema.ifc.psetqto.get_applicable_names(element.is_a(), predefined_type, pset_only=True)
+            in bonsai.bim.schema.ifc.psetqto.get_applicable_names(
+                element.is_a(), predefined_type, pset_only=True, schema=tool.Ifc.get_schema()
+            )
         )
 
     @classmethod
diff --git a/src/ifc5d/ifc5d/qto.py b/src/ifc5d/ifc5d/qto.py
index 2736a82bf2..e23ae2f442 100644
--- a/src/ifc5d/ifc5d/qto.py
+++ b/src/ifc5d/ifc5d/qto.py
@@ -61,7 +61,7 @@ def quantify(ifc_file: ifcopenshell.file, elements: set[ifcopenshell.entity_inst
         calculator = calculators[calculator]
         for ifc_class, qtos in queries.items():
             filtered_elements = set()
-            ifc_classes = [ifc_class] + ifcopenshell.util.type.get_applicable_types(ifc_class)
+            ifc_classes = [ifc_class] + ifcopenshell.util.type.get_applicable_types(ifc_class, ifc_file.schema)
             for ifc_class in ifc_classes:
                 if ifc_class not in elements_by_classes:
                     continue
diff --git a/src/ifcopenshell-python/ifcopenshell/api/root/reassign_class.py b/src/ifcopenshell-python/ifcopenshell/api/root/reassign_class.py
index e9ac4b6891..3e4cd3faf4 100644
--- a/src/ifcopenshell-python/ifcopenshell/api/root/reassign_class.py
+++ b/src/ifcopenshell-python/ifcopenshell/api/root/reassign_class.py
@@ -176,12 +176,12 @@ class Usecase:
         element = self.reassign_class(element, ifc_class, predefined_type)
         if element.is_a("IfcTypeProduct"):
             for occurrence in ifcopenshell.util.element.get_types(element):
-                ifc_class_ = ifcopenshell.util.type.get_applicable_entities(ifc_class)[0]
+                ifc_class_ = ifcopenshell.util.type.get_applicable_entities(ifc_class, self.file.schema)[0]
                 self.reassign_class(occurrence, ifc_class_, predefined_type)
         else:
             element_type = ifcopenshell.util.element.get_type(element)
             if element_type:
-                ifc_class_ = next(iter(ifcopenshell.util.type.get_applicable_types(ifc_class)))
+                ifc_class_ = next(iter(ifcopenshell.util.type.get_applicable_types(ifc_class, self.file.schema)))
                 element_type = self.reassign_class(element_type, ifc_class_, predefined_type)
                 ifc_class = element.is_a()
                 for occurrence in ifcopenshell.util.element.get_types(element_type):
diff --git a/src/ifcopenshell-python/ifcopenshell/util/pset.py b/src/ifcopenshell-python/ifcopenshell/util/pset.py
index 4d9cf699e8..08b10996c0 100644
--- a/src/ifcopenshell-python/ifcopenshell/util/pset.py
+++ b/src/ifcopenshell-python/ifcopenshell/util/pset.py
@@ -19,11 +19,12 @@
 import re
 import pathlib
 import ifcopenshell
+import ifcopenshell.ifcopenshell_wrapper as W
 import ifcopenshell.util.schema
 import ifcopenshell.util.type
 from ifcopenshell.entity_instance import entity_instance
 from functools import lru_cache
-from typing import List, Optional, Literal
+from typing import Optional, Literal
 
 templates: dict[str, "PsetQto"] = {}
 
@@ -62,10 +63,16 @@ class PsetQto:
 
     @lru_cache()
     def get_applicable(
-        self, ifc_class="", predefined_type="", pset_only=False, qto_only=False
-    ) -> List[entity_instance]:
+        self,
+        ifc_class="",
+        predefined_type="",
+        pset_only=False,
+        qto_only=False,
+        schema: ifcopenshell.util.schema.IFC_SCHEMA = "IFC4",
+    ) -> list[entity_instance]:
         any_class = not ifc_class
         if not any_class:
+            entity: W.entity
             entity = self.schema.declaration_by_name(ifc_class)
         result = []
         for template in self.templates:
@@ -77,18 +84,32 @@ class PsetQto:
                     if prop_set.TemplateType and prop_set.TemplateType.startswith("PSET_"):
                         continue
                 if any_class or self.is_applicable(
-                    entity, prop_set.ApplicableEntity or "IfcRoot", predefined_type, prop_set.TemplateType
+                    entity, prop_set.ApplicableEntity or "IfcRoot", predefined_type, prop_set.TemplateType, schema
                 ):
                     result.append(prop_set)
         return result
 
     @lru_cache()
-    def get_applicable_names(self, ifc_class: str, predefined_type="", pset_only=False, qto_only=False) -> List[str]:
+    def get_applicable_names(
+        self,
+        ifc_class: str,
+        predefined_type: str = "",
+        pset_only: bool = False,
+        qto_only: bool = False,
+        schema: ifcopenshell.util.schema.IFC_SCHEMA = "IFC4",
+    ) -> list[str]:
         """Return names instead of objects for other use eg. enum"""
-        return [prop_set.Name for prop_set in self.get_applicable(ifc_class, predefined_type, pset_only, qto_only)]
+        return [
+            prop_set.Name for prop_set in self.get_applicable(ifc_class, predefined_type, pset_only, qto_only, schema)
+        ]
 
     def is_applicable(
-        self, entity: entity_instance, applicables: str, predefined_type="", template_type="NOTDEFINED"
+        self,
+        entity: W.entity,
+        applicables: str,
+        predefined_type: str = "",
+        template_type: str = "NOTDEFINED",
+        schema: ifcopenshell.util.schema.IFC_SCHEMA = "IFC4",
     ) -> bool:
         """applicables can have multiple possible patterns :
         IfcBoilerType                               (IfcClass)
@@ -118,7 +139,7 @@ class PsetQto:
             # This will be fixed in IFC4.3
             template_type = template_type or ""
             if "TYPE" in template_type and ifcopenshell.util.schema.is_a(entity, "IfcTypeObject"):
-                types = ifcopenshell.util.type.get_applicable_types(applicable_class, "IFC4")
+                types = ifcopenshell.util.type.get_applicable_types(applicable_class, schema)
                 if not types:
                     # Abstract classes will not have an "applicable type" but
                     # the implementer agreement still applies to them.
diff --git a/src/ifcopenshell-python/ifcopenshell/util/type.py b/src/ifcopenshell-python/ifcopenshell/util/type.py
index fed14d69a0..8ff0fe1a3c 100644
--- a/src/ifcopenshell-python/ifcopenshell/util/type.py
+++ b/src/ifcopenshell-python/ifcopenshell/util/type.py
@@ -51,7 +51,7 @@ for schema in mapped_schemas:
                 type_to_entity_map[schema][element_type] = [e for e in elements if guessed_element in e]
 
 
-def get_applicable_types(ifc_class: str, schema="IFC4") -> list[str]:
+def get_applicable_types(ifc_class: str, schema: ifcopenshell.util.schema.IFC_SCHEMA = "IFC4") -> list[str]:
     """Get applicable types IFC classes for the occurrence IFC class.
 
     E.g. "IfcWindow" -> ["IfcWindowType"].
@@ -60,7 +60,7 @@ def get_applicable_types(ifc_class: str, schema="IFC4") -> list[str]:
     return entity_to_type_map[schema].get(ifc_class, [])
 
 
-def get_applicable_entities(ifc_type_class: str, schema="IFC4") -> list[str]:
+def get_applicable_entities(ifc_type_class: str, schema: ifcopenshell.util.schema.IFC_SCHEMA = "IFC4") -> list[str]:
     """Get applicable occurrence IFC classes for the type IFC class.
 
     E.g. "IfcWindowType" -> ["IfcWindow"].
diff --git a/src/ifcopenshell-python/test/util/test_pset.py b/src/ifcopenshell-python/test/util/test_pset.py
index de3b7b3bf2..90b90f6e35 100644
--- a/src/ifcopenshell-python/test/util/test_pset.py
+++ b/src/ifcopenshell-python/test/util/test_pset.py
@@ -24,7 +24,7 @@ from ifcopenshell import util
 class TestPsetQto:
     @classmethod
     def setup_class(cls):
-        cls.pset_qto = util.pset.PsetQto("IFC4")
+        cls.pset_qto = pset.PsetQto("IFC4")
 
     def test_get_applicables(self):
         for i in range(1000):
diff --git a/src/ifcpatch/ifcpatch/recipes/ConvertPropertiesToQuantities.py b/src/ifcpatch/ifcpatch/recipes/ConvertPropertiesToQuantities.py
index 969461ecc2..5667defdbb 100644
--- a/src/ifcpatch/ifcpatch/recipes/ConvertPropertiesToQuantities.py
+++ b/src/ifcpatch/ifcpatch/recipes/ConvertPropertiesToQuantities.py
@@ -112,5 +112,7 @@ class Patcher:
 
     def get_qto_templates(self, ifc_class: str) -> list[ifcopenshell.entity_instance]:
         if ifc_class not in self.qto_template_cache:
-            self.qto_template_cache[ifc_class] = self.psetqto.get_applicable(ifc_class, qto_only=True)
+            self.qto_template_cache[ifc_class] = self.psetqto.get_applicable(
+                ifc_class, qto_only=True, schema=self.file.schema
+            )
         return self.qto_template_cache[ifc_class]