The main purpose of the Bus Operator Safety and Security Act is to enhance the safety and security of bus operators working on fixed-route buses. The legislation aims to ensure that new buses purchased with federal funds are equipped with specific safety features that protect operators while allowing them to maintain visibility. Key provisions of the Act require that any new fixed-route bus that is 30 feet or longer and has a useful life of at least 10 years must have an operator workstation that includes a safety barrier.