diff --git a/tag-shared-vpc-resources/README.md b/tag-shared-vpc-resources/README.md
index f90abc9..6b79260 100644
--- a/tag-shared-vpc-resources/README.md
+++ b/tag-shared-vpc-resources/README.md
@@ -66,6 +66,7 @@ No modules.
 | [aws_ec2_tag.transit_gateway](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/ec2_tag) | resource |
 | [aws_ec2_tag.vpcs](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/ec2_tag) | resource |
 | [null_resource.network_acl](https://registry.terraform.io/providers/hashicorp/null/latest/docs/resources/resource) | resource |
+| [null_resource.network_acls](https://registry.terraform.io/providers/hashicorp/null/latest/docs/resources/resource) | resource |
 | [aws_arn.current](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/data-sources/arn) | data source |
 | [aws_arn.network_account](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/data-sources/arn) | data source |
 | [aws_caller_identity.current](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/data-sources/caller_identity) | data source |
diff --git a/tag-shared-vpc-resources/tag-network-acls.tf b/tag-shared-vpc-resources/tag-network-acls.tf
index f0d4603..6ca4045 100644
--- a/tag-shared-vpc-resources/tag-network-acls.tf
+++ b/tag-shared-vpc-resources/tag-network-acls.tf
@@ -25,6 +25,7 @@ resource "null_resource" "network_acl" {
     directory      = "setup"
     network_acl_id = each.key
     filename       = "network_acl.${each.key}.json"
+    full_filename  = format("%v/%v/%v", path.root, "setup", "network_acl.${each.key}.json")
   }
 
   provisioner "local-exec" {
@@ -44,9 +45,21 @@ resource "null_resource" "network_acl" {
 data "local_file" "network_acl" {
   #  for_each = toset(flatten(concat([for k, v in data.aws_network_acls.network_acls : v.ids])))
   for_each = null_resource.network_acl
-  filename = format("%v/%v/%v", path.root, each.value.triggers.directory, each.value.triggers.filename)
+  #  filename = format("%v/%v/%v", path.root, each.value.triggers.directory, each.value.triggers.filename)
+  filename = each.value.triggers.full_filename
 }
 
+resource "null_resource" "network_acls" {
+  triggers = {
+    network_acls = join(",", [for k, v in data.local_file.network_acl : v.filename])
+    filename     = format("%v/%v/%v", path.root, "setup", "network_acls_extracted.dat")
+  }
+  provisioner "local-exec" {
+    command = "touch ${self.triggers.filename}"
+  }
+}
+
+
 ## output "network_acls" {
 ##   value = data.aws_network_acls.network_acls
 ## }
@@ -59,9 +72,9 @@ data "local_file" "network_acl" {
 locals {
   _nacl_enabled         = var.tag_enabled_network_acls
   _network_acls         = local._nacl_enabled ? { for k, v in data.local_file.network_acl : k => jsondecode(v.content) } : {}
-  network_acls          = { for k, v in local._network_acls : k => lookup(v, "NetworkAcls", [{ "Tags" : [], "OwnerId" : "" }])[0] }
-  network_acls_tags     = { for k, v in local.network_acls : k => merge({ for t in v.Tags : t.Key => t.Value }, { "boc:vpc:owner_id" = v.OwnerId }) }
-  network_acls_tags_map = flatten([for k, v in local.network_acls_tags : [for tk, tv in v : { label = format("%v__%v", k, tk), network_acl_id = k, key = tk, value = tv }]])
+  network_acls          = fileexists(null_resource.network_acls.triggers.filename) ? { for k, v in local._network_acls : k => lookup(v, "NetworkAcls", [{ "Tags" : [], "OwnerId" : "" }])[0] } : {}
+  network_acls_tags     = fileexists(null_resource.network_acls.triggers.filename) ? { for k, v in local.network_acls : k => merge({ for t in v.Tags : t.Key => t.Value }, { "boc:vpc:owner_id" = v.OwnerId }) } : {}
+  network_acls_tags_map = fileexists(null_resource.network_acls.triggers.filename) ? flatten([for k, v in local.network_acls_tags : [for tk, tv in v : { label = format("%v__%v", k, tk), network_acl_id = k, key = tk, value = tv }]]) : []
 }
 
 resource "aws_ec2_tag" "network_acls" {
@@ -70,4 +83,6 @@ resource "aws_ec2_tag" "network_acls" {
   resource_id = each.value.network_acl_id
   key         = each.value.key
   value       = each.value.value
+
+  #  depends_on = [null_resource.network_acl]
 }