diff --git a/src/pingintel_api/pingvision/pingvision_api_client.py b/src/pingintel_api/pingvision/pingvision_api_client.py
index 6a92909..0557790 100644
--- a/src/pingintel_api/pingvision/pingvision_api_client.py
+++ b/src/pingintel_api/pingvision/pingvision_api_client.py
@@ -39,6 +39,7 @@ def create_submission(
         expiration_date: datetime.date | None = None,
         delegate_to_company: str | None = None,
         delegate_to_team: str | None = None,
+        do_not_certify: bool = False,
     ) -> t.PingVisionCreateSubmissionResponse:
         """
         Initiate a new submission from one or more original files.
@@ -92,6 +93,8 @@ def create_submission(
             data["delegate_to_company"] = delegate_to_company
         if delegate_to_team:
             data["delegate_to_team"] = delegate_to_team
+        
+        data["do_not_certify"] = do_not_certify
 
         response = self.post(url, files=multiple_files, data=data)
 
diff --git a/src/pingintel_api/sov_fixer/sov_fixer_api_client.py b/src/pingintel_api/sov_fixer/sov_fixer_api_client.py
index 005bb2f..02c0812 100644
--- a/src/pingintel_api/sov_fixer/sov_fixer_api_client.py
+++ b/src/pingintel_api/sov_fixer/sov_fixer_api_client.py
@@ -40,6 +40,7 @@ def fix_sov_async_start(
         update_callback_url=None,
         allow_ping_data_api=None,
         workflow=None,
+        do_not_certify: bool = False,
     ):
         """
         Start a SOV Fixer request from one or more files asynchronously.
@@ -76,6 +77,8 @@ def fix_sov_async_start(
         if workflow is not None:
             data["workflow"] = workflow
 
+        data["do_not_certify"] = do_not_certify
+
         response = self.post(url, files=files, data=data)
         if 200 <= response.status_code < 300:
             # pprint.pprint(response.json())