J.P. Morgan Chase Sandelman Software Works Franhaufer Inst. To be written last There is a large class of "RATS-Unaware" Relying Parties (RUPs) that Attesters nevertheless need to interoperate with. Existing deployed services, which precede the introduction of Remote Attestation, are often difficult to change/update in significant ways due to regulatory and cryptographic review policies. Yet there are significant advantages if clients can be incrementally updated in the trustworthiness of the platform. This document details a protocol by which the trusthworthiness of an Attesters is reviewed as part of the process of it being provided with some form of an Identity Document (a key, or a credential) to authenticate to RUPs. This specification illustrates how the RATS Architecture can be applied to interoperate with RUPs by providing Attesters with such Identity Documents.