# InstanceReusePolicy
<a name="API_InstanceReusePolicy"></a>

Describes an instance reuse policy for a warm pool. 

For more information, see [Warm pools for Amazon EC2 Auto Scaling](https://docs.aws.amazon.com/autoscaling/ec2/userguide/ec2-auto-scaling-warm-pools.html) in the *Amazon EC2 Auto Scaling User Guide*.

## Contents
<a name="API_InstanceReusePolicy_Contents"></a>

 ** ReuseOnScaleIn **   
Specifies whether instances in the Auto Scaling group can be returned to the warm pool on scale in.   
Type: Boolean  
Required: No

## See Also
<a name="API_InstanceReusePolicy_SeeAlso"></a>

For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/autoscaling-2011-01-01/InstanceReusePolicy) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/autoscaling-2011-01-01/InstanceReusePolicy) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/autoscaling-2011-01-01/InstanceReusePolicy)