# Configuring tags for EC2 instances in Accelerate
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AMS Accelerate manages agents on your Amazon EC2 instances, such as the SSM agent and the CloudWatch agent. For more information about this service offering, see [Automated instance configuration in AMS Accelerate](acc-inst-auto-config.md)

To opt-in to have your Amazon EC2 instances managed by AMS Accelerate, you must apply the following tag to your Amazon EC2 instances: 


| Key | Value | 
| --- | --- | 
| ams:rt:ams-managed | true |