diff --git a/infra-as-code/bicep/modules/policy/assignments/alzDefaults/alzDefaultPolicyAssignments.bicep b/infra-as-code/bicep/modules/policy/assignments/alzDefaults/alzDefaultPolicyAssignments.bicep
index 047388f92..cbc6f9d96 100644
--- a/infra-as-code/bicep/modules/policy/assignments/alzDefaults/alzDefaultPolicyAssignments.bicep
+++ b/infra-as-code/bicep/modules/policy/assignments/alzDefaults/alzDefaultPolicyAssignments.bicep
@@ -10,6 +10,9 @@ param parTopLevelManagementGroupPrefix string = 'alz'
 @maxLength(10)
 param parTopLevelManagementGroupSuffix string = ''
 
+@sys.description('Management, Identity and Connectivity Management Groups beneath Platform Management Group have been deployed. If set to false, platform policies are assigned to the Platform Management Group; otherwise policies are assigned to the child management groups.')
+param parPlatformMgAlzDefaultsEnable bool = true
+
 @sys.description('The region where the Log Analytics Workspace & Automation Account are deployed.')
 param parLogAnalyticsWorkSpaceAndAutomationAccountLocation string = 'eastus'
 
@@ -317,9 +320,9 @@ var varRbacRoleDefinitionIds = {
 var varManagementGroupIds = {
   intRoot: '${parTopLevelManagementGroupPrefix}${parTopLevelManagementGroupSuffix}'
   platform: '${parTopLevelManagementGroupPrefix}-platform${parTopLevelManagementGroupSuffix}'
-  platformManagement: '${parTopLevelManagementGroupPrefix}-platform-management${parTopLevelManagementGroupSuffix}'
-  platformConnectivity: '${parTopLevelManagementGroupPrefix}-platform-connectivity${parTopLevelManagementGroupSuffix}'
-  platformIdentity: '${parTopLevelManagementGroupPrefix}-platform-identity${parTopLevelManagementGroupSuffix}'
+  platformManagement: parPlatformMgAlzDefaultsEnable ? '${parTopLevelManagementGroupPrefix}-platform-management${parTopLevelManagementGroupSuffix}' : '${parTopLevelManagementGroupPrefix}-platform${parTopLevelManagementGroupSuffix}'
+  platformConnectivity: parPlatformMgAlzDefaultsEnable ? '${parTopLevelManagementGroupPrefix}-platform-connectivity${parTopLevelManagementGroupSuffix}' : '${parTopLevelManagementGroupPrefix}-platform${parTopLevelManagementGroupSuffix}'
+  platformIdentity: parPlatformMgAlzDefaultsEnable ? '${parTopLevelManagementGroupPrefix}-platform-identity${parTopLevelManagementGroupSuffix}' : '${parTopLevelManagementGroupPrefix}-platform${parTopLevelManagementGroupSuffix}'
   landingZones: '${parTopLevelManagementGroupPrefix}-landingzones${parTopLevelManagementGroupSuffix}'
   landingZonesCorp: '${parTopLevelManagementGroupPrefix}-landingzones-corp${parTopLevelManagementGroupSuffix}'
   landingZonesOnline: '${parTopLevelManagementGroupPrefix}-landingzones-online${parTopLevelManagementGroupSuffix}'
diff --git a/infra-as-code/bicep/modules/policy/assignments/alzDefaults/generateddocs/alzDefaultPolicyAssignments.bicep.md b/infra-as-code/bicep/modules/policy/assignments/alzDefaults/generateddocs/alzDefaultPolicyAssignments.bicep.md
index 5e6ccdbb3..533aa3292 100644
--- a/infra-as-code/bicep/modules/policy/assignments/alzDefaults/generateddocs/alzDefaultPolicyAssignments.bicep.md
+++ b/infra-as-code/bicep/modules/policy/assignments/alzDefaults/generateddocs/alzDefaultPolicyAssignments.bicep.md
@@ -8,6 +8,7 @@ Parameter name | Required | Description
 -------------- | -------- | -----------
 parTopLevelManagementGroupPrefix | No       | Prefix for the management group hierarchy.
 parTopLevelManagementGroupSuffix | No       | Optional suffix for the management group hierarchy. This suffix will be appended to management group names/IDs. Include a preceding dash if required. Example: -suffix
+parPlatformMgAlzDefaultsEnable | No       | Management, Identity and Connectivity Management Groups beneath Platform Management Group have been deployed. If set to false, platform policies are assigned to the Platform Management Group; otherwise policies are assigned to the child management groups.
 parLogAnalyticsWorkSpaceAndAutomationAccountLocation | No       | The region where the Log Analytics Workspace & Automation Account are deployed.
 parLogAnalyticsWorkspaceResourceId | No       | Log Analytics Workspace Resource ID.
 parLogAnalyticsWorkspaceLogRetentionInDays | No       | Number of days of log retention for Log Analytics Workspace.
@@ -36,6 +37,14 @@ Prefix for the management group hierarchy.
 
 Optional suffix for the management group hierarchy. This suffix will be appended to management group names/IDs. Include a preceding dash if required. Example: -suffix
 
+### parPlatformMgAlzDefaultsEnable
+
+![Parameter Setting](https://img.shields.io/badge/parameter-optional-green?style=flat-square)
+
+Management, Identity and Connectivity Management Groups beneath Platform Management Group have been deployed. If set to false, platform policies are assigned to the Platform Management Group; otherwise policies are assigned to the child management groups.
+
+- Default value: `True`
+
 ### parLogAnalyticsWorkSpaceAndAutomationAccountLocation
 
 ![Parameter Setting](https://img.shields.io/badge/parameter-optional-green?style=flat-square)
@@ -144,6 +153,9 @@ Set Parameter to true to Opt-out of deployment telemetry
         "parTopLevelManagementGroupSuffix": {
             "value": ""
         },
+        "parPlatformMgAlzDefaultsEnable": {
+            "value": true
+        },
         "parLogAnalyticsWorkSpaceAndAutomationAccountLocation": {
             "value": "eastus"
         },