diff --git a/vpc-transit-gateway-association-data/README.md b/vpc-transit-gateway-association-data/README.md
index 57e58aa..4c49fba 100644
--- a/vpc-transit-gateway-association-data/README.md
+++ b/vpc-transit-gateway-association-data/README.md
@@ -70,13 +70,19 @@ No modules.
 | <a name="input_create"></a> [create](#input\_create) | Flag to indicate whether to create the resources or not (default: true) | `bool` | `true` | no |
 | <a name="input_network_account_profile"></a> [network\_account\_profile](#input\_network\_account\_profile) | AWS profile of the source account sharing the VPC resources | `string` | n/a | yes |
 | <a name="input_override_prefixes"></a> [override\_prefixes](#input\_override\_prefixes) | Override built-in prefixes by component. This should be used primarily for common infrastructure things | `map(string)` | `{}` | no |
+| <a name="input_private_subnets_ids"></a> [private\_subnets\_ids](#input\_private\_subnets\_ids) | List of private subnet objects including: subnet, label, availability\_zone, id | <pre>list(object({<br>    subnet            = string<br>    label             = string<br>    availability_zone = string<br>    id                = string<br>  }))</pre> | `[]` | no |
 | <a name="input_route_prefix_list_name"></a> [route\_prefix\_list\_name](#input\_route\_prefix\_list\_name) | Shared prefix list name used for routing to TGW.  It is comprised of all of the network CIDR blocks in AWS using TGW. | `string` | `"transit-gateway.prod"` | no |
 | <a name="input_route_table_label"></a> [route\_table\_label](#input\_route\_table\_label) | Route table lable for the attachment subnets | `string` | `"attachment"` | no |
 | <a name="input_tags"></a> [tags](#input\_tags) | AWS Tags to apply to appropriate resources (S3, KMS).  Do not include safeguard tags here, use the data\_safeguard field for such things. | `map(string)` | `{}` | no |
 | <a name="input_transit_gateway_environment"></a> [transit\_gateway\_environment](#input\_transit\_gateway\_environment) | Transit Gateway Environment (aka, VRF) to which to connnect this VPC | `string` | n/a | yes |
 | <a name="input_transit_gateway_label"></a> [transit\_gateway\_label](#input\_transit\_gateway\_label) | Transit Gateway label for specific instance (sa, prod) | `string` | `"prod"` | no |
 | <a name="input_transit_gateway_routing_type"></a> [transit\_gateway\_routing\_type](#input\_transit\_gateway\_routing\_type) | Transit Gateway routing type, to select either self or peer (where we may have many peers) | `string` | n/a | yes |
+| <a name="input_vpc_environment"></a> [vpc\_environment](#input\_vpc\_environment) | VPC environment purpose (infrastructure, common, shared, dev, stage, ite, prod) | `string` | `null` | no |
+| <a name="input_vpc_full_name"></a> [vpc\_full\_name](#input\_vpc\_full\_name) | VPC full name component (vpc{index}-{vpc\_name}) | `string` | `null` | no |
 | <a name="input_vpc_id"></a> [vpc\_id](#input\_vpc\_id) | VPC ID | `string` | n/a | yes |
+| <a name="input_vpc_index"></a> [vpc\_index](#input\_vpc\_index) | VPC index number (integer starting at 1) | `number` | `null` | no |
+| <a name="input_vpc_name"></a> [vpc\_name](#input\_vpc\_name) | VPC name component used through the VPC descrbing its purpose (ex: dice-dev) | `string` | `null` | no |
+| <a name="input_vpc_short_name"></a> [vpc\_short\_name](#input\_vpc\_short\_name) | VPC short name component (vpc{index}) | `string` | `null` | no |
 
 ## Outputs
 
diff --git a/vpc-transit-gateway-association-data/variables.subnets.tf b/vpc-transit-gateway-association-data/variables.subnets.tf
new file mode 100644
index 0000000..666405e
--- /dev/null
+++ b/vpc-transit-gateway-association-data/variables.subnets.tf
@@ -0,0 +1,12 @@
+# from routing/variables.f
+
+variable "private_subnets_ids" {
+  description = "List of private subnet objects including: subnet, label, availability_zone, id"
+  type = list(object({
+    subnet            = string
+    label             = string
+    availability_zone = string
+    id                = string
+  }))
+  default = []
+}