# Working with tags using the Amazon CLI and the Amazon EMR Serverless API
<a name="using-tags"></a>

Use the following Amazon CLI commands or Amazon EMR Serverless API operations to add, update, list, and delete the tags for your resources. 


**CLI commands and API operations for tags**  

| Resource | Supports tags | Supports tag propagation | 
| --- | --- | --- | 
| Add or overwrite one or more tags | tag-resource | TagResource | 
| List tags for a resource | list-tags-for-resource | ListTagsForResource | 
| Delete one or more tags | untag-resource | UntagResource | 

The following examples demonstrate how to tag or untag resources using the Amazon CLI.

**Tag an existing application**

The following command tags an existing application.

```
aws emr-serverless tag-resource --resource-arn resource_ARN --tags team=devs
```

**Untag an existing application**

The following command deletes a tag from an existing application.

```
aws emr-serverless untag-resource --resource-arn resource_ARN --tag-keys tag_key
```

**List tags for a resource**

The following command lists the tags associated with an existing resource.

```
aws emr-serverless list-tags-for-resource --resource-arn resource_ARN
```