diff --git a/terraform/environments/cdpt-ifs/route53.tf b/terraform/environments/cdpt-ifs/route53.tf
new file mode 100644
index 00000000000..cb6bc2c468f
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+++ b/terraform/environments/cdpt-ifs/route53.tf
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+// DEV + PRE-PRODUCTION DNS CONFIGURATION
+
+// ACM Public Certificate
+resource "aws_acm_certificate" "external" {
+  domain_name       = "modernisation-platform.service.justice.gov.uk"
+  validation_method = "DNS"
+
+  subject_alternative_names = ["${var.networking[0].application}.${var.networking[0].business-unit}-${local.environment}.modernisation-platform.service.justice.gov.uk"]
+  tags = {
+    Environment = local.environment
+  }
+
+  lifecycle {
+    create_before_destroy = true
+  }
+}
+
+resource "aws_acm_certificate_validation" "external" {
+  certificate_arn         = aws_acm_certificate.external.arn
+  validation_record_fqdns = [local.domain_name_main[0], local.domain_name_sub[0]]
+}
+
+// Route53 DNS records for certificate validation
+resource "aws_route53_record" "external_validation" {
+  provider = aws.core-network-services
+
+  allow_overwrite = true
+  name            = local.domain_name_main[0]
+  records         = local.domain_record_main
+  ttl             = 60
+  type            = local.domain_type_main[0]
+  zone_id         = data.aws_route53_zone.network-services.zone_id
+}
+
+resource "aws_route53_record" "external_validation_subdomain" {
+  provider = aws.core-vpc
+
+  allow_overwrite = true
+  name            = local.domain_name_sub[0]
+  records         = local.domain_record_sub
+  ttl             = 60
+  type            = local.domain_type_sub[0]
+  zone_id         = data.aws_route53_zone.external.zone_id
+}
+
+// Route53 DNS record for directing traffic to the service
+resource "aws_route53_record" "external" {
+  provider = aws.core-vpc
+
+  zone_id = data.aws_route53_zone.external.zone_id
+  name    = "${var.networking[0].application}.${var.networking[0].business-unit}-${local.environment}.modernisation-platform.service.justice.gov.uk"
+  type    = "A"
+
+  alias {
+    name                   = aws_lb.ifs_lb.dns_name
+    zone_id                = aws_lb.ifs_lb.zone_id
+    evaluate_target_health = true
+  }
+}
+
+
+// PRODUCTION DNS CONFIGURATION
+
+// ACM Public Certificate
+