diff --git a/charts/kyverno-notation-aws/templates/deployment.yaml b/charts/kyverno-notation-aws/templates/deployment.yaml
index be5bbd8..4735818 100644
--- a/charts/kyverno-notation-aws/templates/deployment.yaml
+++ b/charts/kyverno-notation-aws/templates/deployment.yaml
@@ -61,7 +61,7 @@ spec:
         - name: POD_NAMESPACE
           valueFrom:
             fieldRef:
-              fieldPath: metadata.namespace  
+              fieldPath: metadata.namespace
         - name: SERVICE_NAME
           value: {{ template "kyverno-notation-aws.serviceName" . }}
         - name: DEPLOYMENT_NAME
@@ -71,7 +71,7 @@ spec:
             fieldRef:
               fieldPath: metadata.name
         - name: AWS_REGION
-          value: us-west-2
+          value: {{ .Values.region }}
         - name: DEFAULT_TRUST_POLICY
           value: aws-signer-trust-policy
         volumeMounts:
diff --git a/charts/kyverno-notation-aws/templates/serviceaccount.yaml b/charts/kyverno-notation-aws/templates/serviceaccount.yaml
index dcbc096..ab48353 100644
--- a/charts/kyverno-notation-aws/templates/serviceaccount.yaml
+++ b/charts/kyverno-notation-aws/templates/serviceaccount.yaml
@@ -1,3 +1,4 @@
+{{- if .Values.serviceAccount.enabled }}
 apiVersion: v1
 kind: ServiceAccount
 metadata:
@@ -7,3 +8,4 @@ metadata:
   annotations:
     {{- toYaml . | nindent 4 }}
   {{- end }}
+{{- end -}}
diff --git a/charts/kyverno-notation-aws/values.yaml b/charts/kyverno-notation-aws/values.yaml
index 9a7b7bc..a1701cc 100644
--- a/charts/kyverno-notation-aws/values.yaml
+++ b/charts/kyverno-notation-aws/values.yaml
@@ -1,3 +1,5 @@
+region: us-west-2
+
 # -- (string) Override the name of the chart
 nameOverride: ~
 
@@ -39,16 +41,16 @@ deployment:
   #   registry: bar.example.com
   #   username: barbaz
   #   password: secret2
-  
+
   # -- Allow insecure registry specifies whether to allow insecure connections to registries. Not recommended.
   allowInsecureRegistry: false
-  
+
   # -- Max signature attempts specifies the maximum number of signature envelopes that will be processed for verification
   maxSignatureAttempts: 30
 
 # Service account configuration
 serviceAccount:
-
+  enabled: true
   # -- The ServiceAccount name
   name:
 
@@ -59,7 +61,7 @@ serviceAccount:
 
 # Config map configuration
 configMap:
-  
+
   # -- The notation-plugin-config configmap name
   name: notation-plugin-config