Local municipal or parish authorities must post warning signs when using automated speed enforcement devices or mobile speed cameras.
§45. Required notification for automated speed enforcement devices and mobile speed cameras A. Local municipal authorities or local parish authorities shall post signs indicating that an automated speed enforcement device or mobile speed camera is present. The sign shall be posted no less than two hundred fifty feet and no more than five hundred feet of the location of each automated speed enforcement device or mobile speed camera in such a manner as to be clearly visible, not obstructed by any barrier, equipment, vegetation, or other object, and shall be easily viewable by drivers approaching the automated speed enforcement device or mobile speed camera. The sign shall comply with the current manual and specifications adopted by the Department of Transportation and Development pursuant to R.S. 32:235. B.(1) Failure of a municipal or parish authority to comply with Subsection A of this Section shall prohibit the use of any photographic or video images collected by the automated speed enforcement device or mobile speed camera to impose or collect any civil or criminal fine, fee, or penalty by or on behalf of the municipal or parish authority. (2) In any proceeding to collect a civil or criminal fine, fee, or penalty by or on behalf of a municipal or parish authority, a rebuttable presumption shall exist that signs were posted in accordance with Subsection A of this Section. C. For the purposes of this Section, an "automated speed enforcement device or mobile speed camera" means a manned, unmanned, or portable device designed to collect photographic or video evidence of an alleged violation of a posted speed limit by recording images that depict the license plate or other identifying feature of a motor vehicle that is not operated in compliance with a posted speed limit sign. Acts 2017, No. 247, §1; Acts 2025, No. 107, §2.