(a) CMS providers may provide their subscribers with the option to opt out of both, or either, the ``Child Abduction Emergency/AMBER Alert'' and ``Imminent Threat Alert'' classes of Alert Messages.
(b) CMS providers shall provide their subscribers with a clear indication of what each option means, and provide examples of the types of messages the customer may not receive as a result of opting out. [73 FR 54525, Sept. 22, 2008, as amended at 78 FR 16808, Mar. 19, 2013]