diff --git a/vpc-transit-gateway-association/README.md b/vpc-transit-gateway-association/README.md
index d6e155e..bc025b7 100644
--- a/vpc-transit-gateway-association/README.md
+++ b/vpc-transit-gateway-association/README.md
@@ -84,6 +84,7 @@ This sets up the necessary transit gateway configuration for attaching a VPC wit
 | <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 |
diff --git a/vpc-transit-gateway-association/variables.tf b/vpc-transit-gateway-association/variables.tf
index 29ad7f0..d1c1568 100644
--- a/vpc-transit-gateway-association/variables.tf
+++ b/vpc-transit-gateway-association/variables.tf
@@ -23,11 +23,6 @@ variable "transit_gateway_routing_type" {
   }
 }
 
-## variable "subnet_ids" {
-##   description = "List of subnet IDs for this VPC for the TGW attachment. This should be not public, and should be a separate attachment set of /28 subnets with no other use"
-##   type        = list(string)
-## }
-
 variable "route_table_label" {
   description = "Route table lable for the attachment subnets"
   type        = string
@@ -39,3 +34,15 @@ variable "route_prefix_list_name" {
   type        = string
   default     = "transit-gateway.prod"
 }
+
+variable "transit_gateway_label" {
+  description = "Transit Gateway label for specific instance (sa, prod)"
+  type        = string
+  default     = "prod"
+}
+
+## variable "subnet_ids" {
+##   description = "List of subnet IDs for this VPC for the TGW attachment. This should be not public, and should be a separate attachment set of /28 subnets with no other use"
+##   type        = list(string)
+## }
+