
Quoting
VC Sec. 23123.5. Electronic Wireless Communications Device: Prohibited Use
(a) A person shall not drive a motor vehicle while using an electronic wireless communications device to write, send, or read a textbased communication.
(b) As used in this section “write, send, or read a text-based communication” means using an electronic wireless communications device to manually communicate with any person using a text-based communication, including, but not limited to, communications referred to as a text message, instant message, or electronic mail.
(c) For purposes of this section, a person shall not be deemed to be writing, reading, or sending a text-based communication if the person reads, selects, or enters a telephone number or name in an electronic wireless communications device for the purpose of making or receiving a telephone call.
(d) A violation of this section is an infraction punishable by a base fine of twenty dollars ($20) for a first offense and fifty dollars ($50) for each subsequent offense.
(e) This section does not apply to an emergency services professional using an electronic wireless communications device while operating an authorized emergency vehicle, as defined in Section 165, in the course and scope of his or her duties.