Louisiana Revised Statutes Tit. 32, § 361.3. Security exemption

A. The provisions of R.S. 32:361.1 shall not apply to any motor vehicle registered in this state when the operator of the vehicle possesses an affidavit on a form issued by the Department of Public Safety and Corrections stating that valid security reasons exist which make it necessary to equip the motor vehicle with sun screening material which would be of a light transmission or luminous reflectance in violation of R.S. 32:361.1. The affidavit shall include a description of the vehicle and be kept within the described vehicle. Additionally, at the time of applying for the exemption, the applicant shall provide written consent on a form approved by the Louisiana Bureau of Criminal Identification and Information authorizing the bureau to release any information contained in the applicant's criminal history record and identification files to the office of state police for verification that the applicant has not been convicted of a violent crime or drug offense. The department shall adopt rules and regulations in accordance with the Administrative Procedure Act to implement the provisions of this Section.

B. Any vehicle owned, leased, operated, or otherwise controlled by a governmental or law enforcement agency to conduct official business shall qualify for the security exemption provided for in this Section without the necessity of applying for the exemption or providing written consent for release of criminal history record and identification files for the operator of such vehicle.

C. Any exemption granted pursuant to this Section shall not apply to the area below the top six inches of a motor vehicle windshield.