diff --git a/services/core-api/app/api/mines/permits/permit_conditions/models/permit_conditions.py b/services/core-api/app/api/mines/permits/permit_conditions/models/permit_conditions.py
index 111fbac788..510e306d34 100644
--- a/services/core-api/app/api/mines/permits/permit_conditions/models/permit_conditions.py
+++ b/services/core-api/app/api/mines/permits/permit_conditions/models/permit_conditions.py
@@ -16,9 +16,7 @@ class PermitConditions(SoftDeleteMixin, AuditMixin, Base):
     class _ModelSchema(Base._ModelSchema):
         permit_condition_id = fields.Integer(dump_only=True)
         permit_condition_guid = fields.UUID(dump_only=True)
-        condition_category_code = FieldTemplate(
-            field=fields.String, one_of="PermitConditionCategory"
-        )
+        condition_category_code = fields.String(dump_only=False)
         condition_type_code = FieldTemplate(
             field=fields.String, one_of="PermitConditionType"
         )
diff --git a/services/core-api/app/api/mines/permits/permit_conditions/resources/permit_conditions_resource.py b/services/core-api/app/api/mines/permits/permit_conditions/resources/permit_conditions_resource.py
index a9698234ff..9126827d8f 100644
--- a/services/core-api/app/api/mines/permits/permit_conditions/resources/permit_conditions_resource.py
+++ b/services/core-api/app/api/mines/permits/permit_conditions/resources/permit_conditions_resource.py
@@ -11,6 +11,7 @@
 from app.api.utils.access_decorators import MINESPACE_PROPONENT, VIEW_ALL, requires_role_edit_permit, requires_any_of
 from app.api.utils.resources_mixins import UserMixin
 from app.api.mines.permits.permit.models.permit import Permit
+from app.api.mines.permits.permit_conditions.models.permit_condition_category import PermitConditionCategory
 from app.api.mines.mine.models.mine import Mine
 from app.api.utils.include.user_info import User
 
@@ -32,6 +33,9 @@ def post(self, mine_guid, permit_guid, permit_amendment_guid):
         try:
             permit_condition = PermitConditions._schema().load(request.json['permit_condition'])
 
+            if not PermitConditionCategory.find_by_permit_condition_category_code(permit_condition.condition_category_code):
+                raise BadRequest('condition_category_code is invalid')
+
             if permit_condition.top_level_parent_permit_condition_id is not None:
                 top_condition = PermitConditions.find_by_permit_condition_id(permit_condition.top_level_parent_permit_condition_id)
                 top_condition.permit_condition_status_code = 'NST'
@@ -88,6 +92,8 @@ def put(self, mine_guid, permit_guid, permit_amendment_guid, permit_condition_gu
         old_display_order = old_condition.display_order
         old_category_code = old_condition.condition_category_code
         new_category_code = request_data.get("condition_category_code", None)
+        if not PermitConditionCategory.find_by_permit_condition_category_code(new_category_code):
+            raise BadRequest('condition_category_code is invalid')
         changed_category = old_category_code != new_category_code
         new_status_code = request_data.get("permit_condition_status_code",None)
         changed_status = old_condition.permit_condition_status_code != new_status_code