The barriers must: 1. Be of heavy-duty construction, shielding the bus operator from physical assaults in the operator's area. 2. Provide a shield that protects the driver; be engineered to withstand high impact, while being easy to operate. 3. Must be able to access to the fare box payment interface and/or vault door and see the right side mirrors. 4. Ensure driver comfort and ease of movement in the bus operator area. 5. Have minimal noise or vibration during normal on road operation. 6. The latching system must be easy to operate and provide a secure method that will prevent the safety barrier from opening unintentionally. 7. Promote good ventilation and airflow and allow the driver to clearly communicate with passengers. 8. Not obstruct the rearward view of the operator to the standee line. 9. Be constructed to facilitate full vision for cameras and to preserve ease of visibility. 10. Be designed to prevent glare and minimize reflection from all light sources day and night. 11. Be scratch resistant. 12. Not affect the vehicle's adherence to ADA or other accessibility standards. 13. Not present a hazard or potential injury while the bus driver is entering or leaving the operator’s area. Have no sharp corners or protruding parts that may cause potential harm to driver or passengers. 14. Be a product currently in production no prototypes or “test” designs will be accepted. 15. Be securely installed with no potential of loosening during continuous bus operations, ensuring optimal safety and longevity of the barrier. 16. Glazing material shall be AS2, be tempered/laminated, with antiglare coating. Glazing must be approved for automotive use meeting or exceeding industry standards. 17. The forward glazing material shall side back and forth to allow the driver better visibility while operating the vehicle and close during passenger interaction.