Amazon S3 Express One Zone, a high performance S3 storage class, now supports tags for cost allocation and attribute-based access control (ABAC). You can add tags to S3 directory buckets to track and organize AWS costs using AWS Billing and Cost Management. Additionally, with ABAC support, you can extend your tag-based access control to new and existing users, roles, and directory buckets. This helps eliminate frequent AWS Identity and Access Management (IAM) or S3 bucket policy updates, simplifying how you scale access governance.
S3 Express One Zone supports tags on directory buckets in all AWS Regions where the storage class is available. You can get started with tagging using the AWS Management Console, S3 REST API, AWS CLI, or the AWS SDK. To learn more about using tags to simplify cost allocation or ABAC, visit the S3 User Guide.
Source:: Amazon AWS