It was announced in October that the U.S. Postal Service has been granted permission to start a two-year test of a customized delivery program for grocery e-tailers. The approval follows the postal service’s test partnership with AmazonFresh in San Francisco.

Despite protests from a group knows as the Taxpayers Protection Alliance, the Postal Regulatory Commission determined that this new service would not disrupt existing grocery delivery services.

The postal service expects the delivery program to generate at least $10 million in annual revenues.