AWS customers in the AWS GovCloud (US) Regions can now send messages to an Amazon Simple Queue Service (Amazon SQS) queue from Amazon Virtual Private Cloud (Amazon VPC) using VPC endpoints, without using public IPs and without having to traverse the public internet.  

from Recent Announcements https://aws.amazon.com/about-aws/whats-new/2019/09/amazon-sqs-now-supports-amazon-vpc-endpoints-in-the-govcloud/