While the IEEE P1500 standards working group is on the verge of recommending a standard test interface for "non-mergeable" cores, a need was felt to adopt a standard methodology to achieve easy test interoperability for "non-merged" core (RTL, gate level) integration. A task force was formed under the P1500 working group investigating this issue and came up with a recommendation. DFT Disclosure Document (DDD) was the outcome of this exercise. The DDD, targeted to be an IEEE standard recommended practice document, aims at capturing the DFT related experience the core provider would like to share with the integrator to facilitate easy test integration. This paper presents the objective and structure of this document along with some use models from participating companies as well as an example.