diff --git a/CHANGELOG.md b/CHANGELOG.md
index eb626bc..e309295 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,7 @@
 
 #### FEATURES:
 
+# Added support for assigning Elastic IP address to each NAT instance.
 * Added support for disabling the provisioning of NAT instances [GH-3]
 * Added support for auto-recovery of NAT instances
 * Added support for VPC flow logs [GH-1]
diff --git a/az/variables.tf b/az/variables.tf
index abdce60..c376dcb 100644
--- a/az/variables.tf
+++ b/az/variables.tf
@@ -13,6 +13,15 @@ variable "lan_cidr" {}
 variable "enable_dmz_public_ips" {
   default = true
 }
+variable "nat_auto_recovery" {
+  default = "1"
+}
+variable "period" {
+  default = 60
+}
+variable "evaluation_periods" {
+  default = 2
+}
 variable "lans_per_az" {
   default = 1
 }
diff --git a/examples/basic/variables.tf b/examples/basic/variables.tf
index 5f12485..9f07981 100644
--- a/examples/basic/variables.tf
+++ b/examples/basic/variables.tf
@@ -32,6 +32,9 @@ variable "lan_cidr" {
 variable "lans_per_az" {
   default = 1
 }
+variable "nat_auto_recovery" {
+  default = "1"
+}
 variable "lan_access_cidr" {
   default = "10.10.2.0/23"
 }
diff --git a/examples/full_stack/main.tf b/examples/full_stack/main.tf
index 31e5539..5641a7e 100644
--- a/examples/full_stack/main.tf
+++ b/examples/full_stack/main.tf
@@ -64,4 +64,5 @@ module "vpc_az" {
   user_data_template = "${var.user_data_template}"
   domain = "${var.domain_name}"
   ssh_user = "${var.ssh_user}"
+  nat_auto_recovery = "${var.nat_auto_recovery}"
 }
diff --git a/examples/full_stack/variables.tf b/examples/full_stack/variables.tf
index 39a6f9f..51c91ad 100644
--- a/examples/full_stack/variables.tf
+++ b/examples/full_stack/variables.tf
@@ -32,6 +32,9 @@ variable "lan_cidr" {
 variable "lans_per_az" {
   default = "1"
 }
+variable "nat_auto_recovery" {
+  default = "1"
+}
 variable "lan_access_cidr" {
   default = "10.10.2.0/23"
 }