Example policy: Send events only from a specific Region to a different Region in Amazon EventBridge - Amazon EventBridge
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Example policy: Send events only from a specific Region to a different Region in Amazon EventBridge

The following example policy grants account 111122223333 permission to send all events that are generated in the Middle East (Bahrain) and US West (Oregon) Regions to the event bus named CrossRegionBus in account 123456789012 in the US East (N. Virginia) Region. Account 111122223333 doesn't have permission to send events that are generated in any other Region.

{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Sid": "AllowCrossRegionEventsFromUSWest2AndMESouth1",
      "Effect": "Allow",
      "Principal": {
        "Amazon": "arn:aws:iam::111112222333:root"
      },
      "Action": "events:PutEvents",
      "Resource": "arn:aws:events:us-east-1:123456789012:event-bus/CrossRegionBus",
      "Condition": {
        "ArnEquals": {
          "aws:SourceArn": [
            "arn:aws:events:us-west-2:*:*",
            "arn:aws:events:me-south-1:*:*"
          ]
        }
      }
    }
  ]
}