diff --git a/src/deadline/client/ui/dialogs/submit_job_to_deadline_dialog.py b/src/deadline/client/ui/dialogs/submit_job_to_deadline_dialog.py
index c561b725f..fe2115f6e 100644
--- a/src/deadline/client/ui/dialogs/submit_job_to_deadline_dialog.py
+++ b/src/deadline/client/ui/dialogs/submit_job_to_deadline_dialog.py
@@ -68,10 +68,10 @@ class SubmitJobToDeadlineDialog(QDialog):
         on_create_job_bundle_callback: A function to call when the dialog needs to create a Job Bundle. It
             is called with arguments (widget, job_bundle_dir, settings, queue_parameters, asset_references)
         on_pre_submit_callback: A function to call just prior to the dialog submitting the Job Bundle. It is
-            called with arguments (widget, job_bundle_dir, settings, queue_parameters, asset_references).
+            called with arguments (widget, job_bundle_dir, settings, queue_parameters, asset_references, requirements).
             This callback can be used to validate or modify a scene file before submitting.
-        on_post_submit_callback: A function to call just after the dialog has submitted the Job Bundle. It
-            is called with arguments (widget, job_bundle_dir, settings, queue_parameters, asset_references).
+        on_post_submit_callback: A function to call just after the dialog has submitted the Job Bundle. It is
+            called with arguments (widget, job_bundle_dir, settings, queue_parameters, asset_references, requirements).
             This callback may may be required if the `on_pre_submit_callback` modifies the scene file to
             prepare it for submission and work needs to be done to modify the scene back to a working state.
         parent: parent of the widget
@@ -411,18 +411,6 @@ def on_submit(self):
 
         # Submit the job
         try:
-            # Execute any PreSubmission function defined.
-            if self.on_pre_submit_callback:
-                self.on_pre_submit_callback(
-                    self,
-                    job_history_bundle_dir,
-                    settings,
-                    queue_parameters,
-                    asset_references,
-                    purpose=JobBundlePurpose.SUBMISSION
-                )
-
-
             deadline = api.get_boto3_client("deadline")
 
             job_history_bundle_dir = create_job_history_bundle_dir(
@@ -431,6 +419,18 @@ def on_submit(self):
 
             if self.show_host_requirements_tab:
                 requirements = self.host_requirements.get_requirements()
+                # Execute any PreSubmission function defined.
+                if self.on_pre_submit_callback:
+                    self.on_pre_submit_callback(
+                        self,
+                        job_history_bundle_dir,
+                        settings,
+                        queue_parameters,
+                        asset_references,
+                        requirements,
+                        purpose=JobBundlePurpose.SUBMISSION
+                    )
+
                 self.on_create_job_bundle_callback(
                     self,
                     job_history_bundle_dir,
@@ -441,6 +441,16 @@ def on_submit(self):
                     purpose=JobBundlePurpose.SUBMISSION,
                 )
             else:
+                # Execute any PreSubmission function defined.
+                if self.on_pre_submit_callback:
+                    self.on_pre_submit_callback(
+                        self,
+                        job_history_bundle_dir,
+                        settings,
+                        queue_parameters,
+                        asset_references,
+                        purpose=JobBundlePurpose.SUBMISSION
+                    )
                 # Maintaining backward compatibility for submitters that do not support host_requirements yet
                 self.on_create_job_bundle_callback(
                     self,
@@ -502,6 +512,7 @@ def on_submit(self):
                     settings,
                     queue_parameters,
                     asset_references,
+                    requirements,
                     purpose=JobBundlePurpose.SUBMISSION
                 )
         except UserInitiatedCancel as uic: