282.0.12. A notice informing users and the public of the prohibitions and security screening measures in effect must be prominently posted in the building or part of the building where the prohibitions and measures apply. The notice must state that persons who do not wish to submit to security screening will not be admitted to the premises or must leave the premises, as the case may be. The notice must also state that refusing to submit to security screening or leaving the premises does not release a person from any obligation to be on the premises, for instance for the purposes of legal proceedings.