# AWSSystemsManagerChangeManagementServicePolicy
<a name="AWSSystemsManagerChangeManagementServicePolicy"></a>

**Description**: Provides access to AWS resources managed or used by the AWS Systems Manager change management framework.

`AWSSystemsManagerChangeManagementServicePolicy` is an [AWS managed policy](https://docs.aws.amazon.com/IAM/latest/UserGuide/access_policies_managed-vs-inline.html#aws-managed-policies).

## Using this policy
<a name="AWSSystemsManagerChangeManagementServicePolicy-how-to-use"></a>

This policy is attached to a service-linked role that allows the service to perform actions on your behalf. You cannot attach this policy to your users, groups, or roles.

## Policy details
<a name="AWSSystemsManagerChangeManagementServicePolicy-details"></a>
+ **Type**: Service-linked role policy 
+ **Creation time**: December 07, 2020, 22:21 UTC 
+ **Edited time:** October 23, 2025, 21:19 UTC
+ **ARN**: `arn:aws:iam::aws:policy/aws-service-role/AWSSystemsManagerChangeManagementServicePolicy`

## Policy version
<a name="AWSSystemsManagerChangeManagementServicePolicy-version"></a>

**Policy version:** v2 (default)

The policy's default version is the version that defines the permissions for the policy. When a user or role with the policy makes a request to access an AWS resource, AWS checks the default version of the policy to determine whether to allow the request. 

## JSON policy document
<a name="AWSSystemsManagerChangeManagementServicePolicy-json"></a>

```
{
  "Version" : "2012-10-17",
  "Statement" : [
    {
      "Effect" : "Allow",
      "Action" : [
        "ssm:CreateAssociation",
        "ssm:DeleteAssociation",
        "ssm:CreateOpsItem",
        "ssm:GetOpsItem",
        "ssm:UpdateOpsItem",
        "ssm:StartAutomationExecution",
        "ssm:StopAutomationExecution",
        "ssm:GetAutomationExecution",
        "ssm:GetCalendarState",
        "ssm:GetDocument"
      ],
      "Resource" : [
        "*"
      ]
    },
    {
      "Effect" : "Allow",
      "Action" : [
        "cloudwatch:DescribeAlarms"
      ],
      "Resource" : [
        "*"
      ]
    },
    {
      "Effect" : "Allow",
      "Action" : [
        "sso:ListDirectoryAssociations"
      ],
      "Resource" : [
        "*"
      ]
    },
    {
      "Effect" : "Allow",
      "Action" : [
        "sso-directory:DescribeUsers",
        "sso-directory:IsMemberInGroup"
      ],
      "Resource" : [
        "*"
      ]
    },
    {
      "Effect" : "Allow",
      "Action" : "iam:GetGroup",
      "Resource" : "*"
    },
    {
      "Effect" : "Allow",
      "Action" : "iam:PassRole",
      "Resource" : "*",
      "Condition" : {
        "StringEquals" : {
          "iam:PassedToService" : [
            "ssm.amazonaws.com"
          ]
        }
      }
    },
    {
      "Sid" : "AllowKmsAccessViaIdentityCenter",
      "Effect" : "Allow",
      "Action" : [
        "kms:Decrypt"
      ],
      "Resource" : "*",
      "Condition" : {
        "ArnLike" : {
          "kms:EncryptionContext:aws:sso:instance-arn" : "arn:*:sso:::instance/*"
        },
        "StringLike" : {
          "kms:ViaService" : "sso.*.amazonaws.com"
        }
      }
    },
    {
      "Sid" : "AllowKmsAccessViaIdentityStore",
      "Effect" : "Allow",
      "Action" : [
        "kms:Decrypt"
      ],
      "Resource" : "*",
      "Condition" : {
        "ArnLike" : {
          "kms:EncryptionContext:aws:identitystore:identitystore-arn" : "arn:*:identitystore::*:identitystore/*"
        },
        "StringLike" : {
          "kms:ViaService" : "identitystore.*.amazonaws.com"
        }
      }
    }
  ]
}
```

## Learn more
<a name="AWSSystemsManagerChangeManagementServicePolicy-learn-more"></a>
+ [Understand versioning for IAM policies](https://docs.aws.amazon.com//IAM/latest/UserGuide/access_policies_managed-versioning.html)
+ [Get started with AWS managed policies and move toward least-privilege permissions](https://docs.aws.amazon.com//IAM/latest/UserGuide/best-practices.html#bp-use-aws-defined-policies)