1## 9.2\. UID and Process Isolation
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3Device implementations:
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5*    [C-0-1] MUST support the Android application
6sandbox model, in which each application runs as a unique Unixstyle UID
7and in a separate process.
8*    [C-0-2] MUST support running multiple applications
9as the same Linux user ID, provided that the applications are properly signed
10and constructed, as defined in the [Security and Permissions reference](http://developer.android.com/guide/topics/security/permissions.html).
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