This document presents a common set of requirements to be implemented in hardware-assisted functions to facilitate security-enhanced applications, to achieve an ideal system for hardware protection for ground vehicle applications. This document will outline a common set of requirements to meet this goal and illustrate examples of the use of such requirements in various use cases which span the lifecycle of ground vehicle products, without explicitly detailing implementation requirements. SAE J3101 has taken the approach of defining requirements through fundamental use cases. These requirements become building blocks for innovation, but are not development-process oriented. The presented building blocks are not attempting to encompass all future potential innovation; however, considerable future innovation should be possible through creative combinations of the presented requirements. It should be expected that some innovation may create future core requirements that themselves become new building blocks not captured within the scope of this revision of this document.