This SCP restricts IAM principals in accounts from creating new S3 buckets without ACLs disabled (bucket owner enforced)

See Related Configuration Items for a Configuration Package to deploy multiple SCPs to an AWS Account.

Configuration template includes a CloudFormation custom resource to deploy into an AWS account.

    "Version": "2012-10-17",
    "Statement": [
            "Action": [
            "Resource": "*",
            "Effect": "Deny",
            "Condition": {
                "StringNotEquals": {
                    "s3:x-amz-object-ownership": "BucketOwnerEnforced"


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