diff --git a/.pullapprove.yml b/.pullapprove.yml
index 81267526ee8e21..344ca8ce059fea 100644
--- a/.pullapprove.yml
+++ b/.pullapprove.yml
@@ -238,7 +238,46 @@ groups:
       request: 0 # Do not auto-add
 
   ############################################################
-  #  Base Required Reviewers
+  #  Folder specific review requirements. A PR must meet all
+  #  folder specific review requirements for all folders that
+  #  it touches with specific requirements defined.
+  ############################################################
+
+  folder-reviewers-scripts-build-integrations-docker:
+    type: optional
+    conditions:
+      - "files.include('scripts/build/*') or files.include('integrations/docker/*')"
+    reviewers:
+      users:
+        - andy31415
+    reviews:
+      # 1 review request will be sent at a time
+      request: 1
+
+  folder-reviewers-google:
+    type: required
+    conditions:
+      - "files.include('examples/chef/*') or files.include('integrations/cloudbuild/*')"
+    requirements:
+      - "len(groups.approved.include('shared-reviewers-google')) >= 1 or \
+        len(groups.approved.include('shared-reviewers-*')) >= 2"
+    reviews:
+      required: 0
+
+  folder-reviewers-apple:
+    type: required
+    conditions:
+      - "files.include('src/darwin/*').exclude('src/darwin/Framework/CHIP/zap-generated/*') or \
+        files.include('src/platform/Darwin/*')"
+    reviewers:
+      teams: [reviewers-apple]
+    reviews:
+      request: 0
+      required: 1
+
+  ############################################################
+  #  Base Required Reviewers. If PR touches a path not covered
+  #  by any folder specific review requirements.
   ############################################################
   required-reviewers:
     description: >
@@ -247,6 +286,14 @@ groups:
       This is the main group of required reviews for general pull
       requests.
     type: required
+    conditions:
+      # If PR touches a region not covered by any custom review paths, base condition is required.
+      - "files\
+              .exclude('examples/chef/*')\
+              .exclude('integrations/cloudbuild/*')\
+              .exclude('src/darwin/*')\
+              .exclude('src/platform/Darwin/*') or \
+        files.include('src/darwin/Framework/CHIP/zap-generated/*')"
     requirements:
       - len(groups.approved.include('shared-reviewers-*')) >= 2
     reviews:
diff --git a/examples/chef/common/stubs.cpp b/examples/chef/common/stubs.cpp
index 92c1cc879bfddd..5e912b2d1196c5 100644
--- a/examples/chef/common/stubs.cpp
+++ b/examples/chef/common/stubs.cpp
@@ -6,6 +6,10 @@
 #include <app/util/config.h>
 #include <lib/core/DataModelTypes.h>
 
+/**
+ * TODO: Remove this comment.
+ */
+
 using chip::app::DataModel::Nullable;
 
 using namespace chef;
diff --git a/integrations/cloudbuild/chef.yaml b/integrations/cloudbuild/chef.yaml
index 6bca9e790d4c4b..fdf2cacd59756a 100644
--- a/integrations/cloudbuild/chef.yaml
+++ b/integrations/cloudbuild/chef.yaml
@@ -89,3 +89,5 @@ artifacts:
 options:
     machineType: "E2_HIGHCPU_32"
     diskSizeGb: 500
+
+# TODO: Remove this comment.
diff --git a/integrations/docker/build.sh b/integrations/docker/build.sh
index db1976da538a35..f656128fb5a6f6 100755
--- a/integrations/docker/build.sh
+++ b/integrations/docker/build.sh
@@ -121,3 +121,5 @@ if [ -f "$DOCKER_VOLUME_PATH" ]; then
 fi
 
 exit 0
+
+# TODO: Remove this comment.
diff --git a/scripts/build/BUILD.gn b/scripts/build/BUILD.gn
index a109bb935fd2f7..f83074d5ee82c1 100644
--- a/scripts/build/BUILD.gn
+++ b/scripts/build/BUILD.gn
@@ -72,3 +72,4 @@ pw_python_package("build_examples") {
     "build/test_target.py",
   ]
 }
+# TODO: Remove this comment.
diff --git a/src/darwin/Framework/CHIP/BUILD.gn b/src/darwin/Framework/CHIP/BUILD.gn
index 4421397e97421f..71f10d8688c716 100644
--- a/src/darwin/Framework/CHIP/BUILD.gn
+++ b/src/darwin/Framework/CHIP/BUILD.gn
@@ -12,6 +12,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+# TODO remove this comment.
+
 import("//build_overrides/chip.gni")
 
 config("darwin_config") {