diff --git a/CHANGELOG.md b/CHANGELOG.md
index 924e2382c2..74e8d39c9d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -19,7 +19,6 @@ CHANGELOG
 
 **CHANGES**
 - Upgrade Cinc Client to version to 18.4.12 from 18.2.7.
-- Allow build-image to be run in an isolated network.
 
 3.9.3
 ------
diff --git a/cli/src/pcluster/constants.py b/cli/src/pcluster/constants.py
index a644ab7460..73ee1e90f3 100644
--- a/cli/src/pcluster/constants.py
+++ b/cli/src/pcluster/constants.py
@@ -294,7 +294,16 @@ class Operation(Enum):
     VERSION = "version"
 
 
-UNSUPPORTED_OPERATIONS_MAP = {}
+UNSUPPORTED_OPERATIONS_MAP = {
+    Operation.BUILD_IMAGE: ["us-iso"],
+    Operation.DELETE_IMAGE: ["us-iso"],
+    Operation.DESCRIBE_IMAGE: ["us-iso"],
+    Operation.LIST_IMAGES: ["us-iso"],
+    Operation.EXPORT_IMAGE_LOGS: ["us-iso"],
+    Operation.GET_IMAGE_LOG_EVENTS: ["us-iso"],
+    Operation.GET_IMAGE_STACK_EVENTS: ["us-iso"],
+    Operation.LIST_IMAGE_LOG_STREAMS: ["us-iso"],
+}
 
 MAX_TAGS_COUNT = 40  # Tags are limited to 50, reserve some tags for parallelcluster specified tags
 
diff --git a/cli/src/pcluster/resources/imagebuilder/parallelcluster.yaml b/cli/src/pcluster/resources/imagebuilder/parallelcluster.yaml
index caf1262588..ebccd777d3 100644
--- a/cli/src/pcluster/resources/imagebuilder/parallelcluster.yaml
+++ b/cli/src/pcluster/resources/imagebuilder/parallelcluster.yaml
@@ -53,7 +53,7 @@ phases:
           commands:
             - |
               set -v
-              CINC_URL="s3://${AWS::Region}-aws-parallelcluster/archives/cinc/cinc-install-1.3.0.sh"
+              CINC_URL="https://${AWS::Region}-aws-parallelcluster.s3.${AWS::Region}.${AWS::URLSuffix}/archives/cinc/cinc-install-1.3.0.sh"
               [ -n "${CfnParamCincInstaller}" ] && CINC_URL="${CfnParamCincInstaller}"
               echo "${!CINC_URL}"
 
@@ -219,19 +219,13 @@ phases:
                 apt-get -y --only-upgrade install ca-certificates
               fi
 
-              aws s3 --region ${AWS::Region} cp {{ build.CincUrl.outputs.stdout }} - | bash -s -- -v {{ ChefVersion }}
+              curl --retry 3 -L {{ build.CincUrl.outputs.stdout }} | bash -s -- -v {{ ChefVersion }}
 
               if [[ -e ${!CA_CERTS_FILE} ]]; then
-                mkdir -p /opt/cinc/embedded/ssl/certs
                 ln -sf ${!CA_CERTS_FILE} /opt/cinc/embedded/ssl/certs/cacert.pem
               fi
-              
-              aws s3 cp s3://${AWS::Region}-aws-parallelcluster/archives/dependencies/ruby/gems.tgz gems.tgz --region ${AWS::Region}
-              tar -xf gems.tgz
-              
-              cd vendor/cache
 
-              /opt/cinc/embedded/bin/gem install --local --no-document berkshelf:{{ BerkshelfVersion }}
+              /opt/cinc/embedded/bin/gem install --no-document berkshelf:{{ BerkshelfVersion }}
 
       # Download and vendor Cookbook
       - name: DownloadCookbook
@@ -241,14 +235,9 @@ phases:
             - |
               set -v
               mkdir -p /etc/chef && sudo chown -R root:root /etc/chef
-              
-              if [[ "{{ build.CookbookUrl.outputs.stdout }}" =~ "s3://" ]]; then
-                aws s3 cp "{{ build.CookbookUrl.outputs.stdout }}" /etc/chef/aws-parallelcluster-cookbook.tgz --region ${AWS::Region}
-              else
-                curl --retry 3 -L -o /etc/chef/aws-parallelcluster-cookbook.tgz "{{ build.CookbookUrl.outputs.stdout }}"
-              fi
+              curl --retry 3 -L -o /etc/chef/aws-parallelcluster-cookbook.tgz "{{ build.CookbookUrl.outputs.stdout }}"
 
-              mkdir -p /tmp/cookbooks
+              mkdir /tmp/cookbooks
               cd /tmp/cookbooks
               tar -xzf /etc/chef/aws-parallelcluster-cookbook.tgz
 
diff --git a/tests/integration-tests/configs/build_image_iso.yaml b/tests/integration-tests/configs/build_image_iso.yaml
deleted file mode 100644
index 25aecc8396..0000000000
--- a/tests/integration-tests/configs/build_image_iso.yaml
+++ /dev/null
@@ -1,22 +0,0 @@
-{%- import 'common.jinja2' as common with context -%}
-{% if REGIONS  %}
-{%- set REGIONS = [ REGIONS ] -%}
-{% else %}
-{%- set REGIONS = ["us-isob-east-1","us-iso-east-1"] -%}
-{% endif %}
-{%- set INSTANCES = ["c5.xlarge"] -%}
-{% if OSS  %}
-{%- set OSS = [ OSS ] -%}
-{% else %}
-{%- set OSS = ["alinux2"] -%}
-{% endif %}
-{%- set SCHEDULERS = ["slurm"] -%}
----
-test-suites:
-  createami:
-    test_createami.py::test_build_image:
-      dimensions:
-        - regions: {{ REGIONS }}
-          instances: {{ INSTANCES }}
-          schedulers: {{ SCHEDULERS }}
-          oss: {{ OSS }}
\ No newline at end of file