Capacity Reservation Resource Groups now support Amazon EC2 Capacity Blocks and interruptible Capacity Reservations in AWS GovCloud (US) Regions

Published
November 6, 2026
https://aws.amazon.com/about-aws/whats-new/2026/11/capacity-reservation-resource-groups-support-in-aws-govcloud-regions

AWS GovCloud (US) Regions Support for Capacity Reservation Resource Groups

Starting today, you can add Amazon EC2 Capacity Blocks for ML and interruptible Capacity Reservations to Capacity Reservation Resource Groups in AWS GovCloud (US) Regions. This update allows you to include any type of Capacity Reservation in a Capacity Reservation Resource Group, simplifying the process of launching EC2 instances across your reserved capacity portfolio.

What to do

  • Create a Capacity Reservation Resource Group.
  • Add any Capacity Reservation to the group.
  • Target the group in your launch request.
  • For EC2 Fleet and EC2 Auto Scaling groups, specify prioritization preferences and configure automatic fall back to EC2 On-Demand capacity.

There are no additional charges for using this feature. This feature is now available in all AWS Regions where Capacity Blocks for ML and interruptible ODCRs are supported, excluding China Regions.

Source: AWS release notes




If you need further guidance on AWS, our experts are available at AWS@westloop.io. You may also reach us by submitting the Contact Us form.

Follow our blog

Get the latest insights and advice on AWS services from our experts.

By clicking Sign Up you're confirming that you agree with our Terms and Conditions.
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.