Louisiana HB 421 regulates employers' use of automated decision systems (ADS) in employment contexts, covering hiring, discipline, termination, compensation, and other employment-related decisions. Employers must provide detailed pre-deployment written notice to workers, maintain ADS inventories, ensure human review of ADS-assisted decisions, and give workers data access and correction rights. The bill categorically prohibits use of facial recognition, gait, and emotion recognition technologies in ADS, and bars employers from using ADS to infer protected status or make predictions unrelated to essential job functions. Workers have a right to appeal any ADS-assisted employment decision with a mandatory human review process. Enforcement is through Louisiana Works (agency-initiated) and private civil actions, with a $500 civil penalty per violation plus availability of injunctive relief, punitive damages, and attorney fees. Collective bargaining agreements may waive the bill's provisions under specified conditions.