Tizen Compliance is the official software compatibility program for Tizen that describes a standard execution environment which devices provide and for which applications are built. The compliance program consists of several pieces including a description of the environment, the test suites used to validate conformance, and a path to certification. This talk will describe the the goals of the program, how it works from the viewpoint of both system developers and application developers, and how it helps contain the fragmentation problems that could otherwise happen within Tizen ecosystem. All of the current profiles (Mobile, Wearable, and TV) will be described in detail.