# ebs-optimized-instance
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Checks if Amazon EBS optimization is enabled for your Amazon Elastic Compute Cloud (Amazon EC2) instances that can be Amazon EBS-optimized. The rule is NON\_COMPLIANT if EBS optimization is not enabled for an Amazon EC2 instance that can be EBS-optimized. 

**Note**  
EC2 instances which are EBS-optimized by default always result in rule evaluations returning `COMPLIANT`.

**Identifier:** EBS\_OPTIMIZED\_INSTANCE

**Resource Types:** AWS::EC2::Instance

**Trigger type:** Configuration changes

**Amazon Web Services Region:** All supported Amazon regions except Asia Pacific (New Zealand), Asia Pacific (Thailand), Asia Pacific (Malaysia), Mexico (Central), Asia Pacific (Taipei), Canada West (Calgary) Region

**Parameters:**

None  

## Amazon CloudFormation template
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To create Amazon Config managed rules with Amazon CloudFormation templates, see [Creating Amazon Config Managed Rules With Amazon CloudFormation Templates](aws-config-managed-rules-cloudformation-templates.md).