As students are head back to school, the Texarkana Texas Police Department is reminding drivers to be extra cautious and watch for school buses on local roadways. When to Stop For a School Bus in Texas & ArkansasWith buses picking up and dropping off students throughout the day, drivers are required by Texas and Arkansas law to stop whenever a school bus is stopped with its red lights flashing. Passing a Stopped School Bus is an Expensive TicketPassing a stopped school bus is not only dangerous, but it can also be costly. In Texarkana, the fine for illegally passing a stopped school bus is $645. Below is a great diagram of when and when not to stop for a school bus.