There are no cell phone prohibitions for drivers aged 18 and over.
Drivers having learner's permits or intermediate licenses may not use handheld cell phones while operating a vehicle. Drivers under the age of 18 may not use cell phones, personal communications devices, or computers of any kind while driving (LA Rev. Stat. Sec. 32:300.7).
Writing, sending, or reading a text-based message (e-mail, instant message, or text message) from a wireless telecommunications device while operating a motor vehicle is prohibited for anyone driving on public roads or highways in Louisiana. This is considered a primary traffic offense and moving violation, with fines ranging from $175 for a first offense to $500 for subsequent offenses. If the offense resulted in an accident, the fine is doubled. The state can notify insurance companies of texting offenses listed on written accident reports (LA Rev. Stat. Sec. 32:300.5.
Global positioning systems are not included in this prohibition.
Exceptions. Texting is allowed to summon emergency or medical assistance, prevent injury to a person or property, or report illegal activity. Law enforcement officers, firefighters, operators of emergency vehicles, and doctors communicating with a hospital, medical clinic, or medical office are exempt.