Amazon VPC Sharing is obtainable in AWS GovCloud (US-East)

Amazon VPC allows you to initiate AWS resources into a virtual network that you have described. And with VPC sharing, you can enable other AWS accounts to build their application resources, like EC2 instances, RDS, Redshift clusters, and Lambda functions, into shared, centrally-managed Amazon VPCs. Customers make several AWS accounts to generate effective billing and control access to different environments, like development, staging, and production, over multiple business and application teams. Now, you can design independent Amazon VPCs for all account with the account holder being accountable for connectivity and security of all Amazon VPC. Using VPC sharing, IT team can possess and control your Amazon VPCs and your application developers no longer have to handle or configure Amazon VPCs, but they can access them as required. Now Amazon Virtual Private Cloud sharing (VPC sharing) is accessible in the AWS GovCloud (US-East) Region and in each commercial AWS Regions excluding in South America (São Paulo), Asia Pacific (Osaka-Local), and China regions. There are no extra prices applicable on this feature. To read further on VPC sharing, refer documentation.