OMB Memorandum M-05-22 directed the National Institute of Standards and Technology (NIST) to develop the technical infrastructure (standards and testing) necessary to support wide scale adoption of IPv6 in the US Government (USG). Upon detailed inspection of the state of the industry and the scope of IPv6 technology, it was felt prudent to develop the USGv6 standards profile  to assist agencies in the development of acquisition requirements for IPv6 products and the USGv6 Test Program to provide the means to assess product compliance to such requirements. This document outlines the form and function of the USGv6 Test Program. In particular, it defines the components of the test program, their implementation and use. This guide also defines the management process that will govern the future evolution of the test program and how it will address and accommodate ever changing requirement sets and product offerings. The guide is expected to be of general use to all those interested in understanding the USGv6 Test program, but in particular, to: IPv6 product developers aiming to document capabilities that comply with requirements expressed in terms of the USGv6 profile; USG Agencies acquiring IT products that require USGv6 capabilities; and, USGv6 Test Labs that will provide testing services to support the above. This document explains the technical infrastructure provided by the USGv6 Test Program and how it is to be used by each of the groups above.