# Identity and Access Management for routing control in ARC
<a name="security-iam-routing"></a>

AWS Identity and Access Management (IAM) is an AWS service that helps an administrator securely control access to AWS resources. IAM administrators control who can be *authenticated* (signed in) and *authorized* (have permissions) to use ARC resources. IAM is an AWS service that you can use with no additional charge.

**Topics**
+ [How routing control works with IAM](security_iam_service-with-iam-routing.md)
+ [Identity-based policy examples](security_iam_id-based-policy-examples-routing.md)
+ [AWS managed policies](security-iam-awsmanpol-routing.md)