diff --git a/tag-shared-vpc-resources/main.tf b/tag-shared-vpc-resources/main.tf
index 09339b1..dae0c6d 100644
--- a/tag-shared-vpc-resources/main.tf
+++ b/tag-shared-vpc-resources/main.tf
@@ -32,3 +32,15 @@
 * ```
 */
 
+locals {
+  account_id          = var.account_id != "" ? var.account_id : data.aws_caller_identity.current.account_id
+  account_environment = data.aws_arn.current.partition == "aws-us-gov" ? "gov" : "ew"
+  region              = data.aws_region.current.name
+  region_short        = join("", [for c in split("-", local.region) : substr(c, 0, 1)])
+
+  base_tags = {
+    "boc:tf_module_version" = local._module_version
+    "boc:tf_module_name"    = lookup(local._module_names, local._module_name, local._module_names["_main_"])
+    "boc:created_by"        = "terraform"
+  }
+}
diff --git a/tag-shared-vpc-resources/region.tf b/tag-shared-vpc-resources/region.tf
deleted file mode 100644
index b7b1696..0000000
--- a/tag-shared-vpc-resources/region.tf
+++ /dev/null
@@ -1,4 +0,0 @@
-locals {
-  region = var.region
-}
-