In this task, you are given a summary for US Congressional and California state bill, your task is to generate a Title for this bill. The preferred titles are under forty words and mention the purpose of the bill.

Cell Phone Theft Prevention Act of 2016 This bill amends the Communications Act of 1934 to prohibit commercial mobile or data service providers from providing service on smart phones that: (1) have been reported to such provider as stolen by an authorized user, or (2) are listed as stolen on the Central Equipment Identity Register (CEIR). When a smart phone is reported stolen to a service provider, the provider must notify the CEIR with information necessary to identify the phone. Smart phones must be equipped with: (1) preloaded antitheft functionality at no additional cost to purchasers, or be capable of downloading such functionality at no cost; and (2) a mobile device identification number. A criminal penalty is established for anyone who violates prohibitions against: (1) removing, obliterating, tampering with, or altering a smart phone's mobile device identification number; (2) using, producing, trafficking in, having control or custody of, or possessing hardware or software, knowing it has been configured to engage in such identification number removal or alteration violations; or (3) selling a smart phone for which the identification number is listed as stolen on the CEIR.
Cell Phone Theft Prevention Act of 2016