Before I turn to Mike to talk about the particular technologies, you're absolutely correct that this is complicated and complex, when you consider that some school buses have up to 70 children, all the way from kindergarten up to basically adult-size in grade 12. I grew up in rural Alberta. I know what it was like riding the bus. To ensure that those seat belts are safe, as they are in our cars, they have to be worn properly. We have to be assured that they're being worn properly, as well as recognizing the fact that the seats have to be robust enough to be able to support the seat belt actually being worn.
Mike, I'll turn it over to you to talk about the technology advancements or the technical standards that are required to be able to adjust and to be able to deal with that size difference as we talked about.