No, it's just at the tailpipe during the operation of the bus. It doesn't consider the whole life cycle.
Maybe to that comment I'd highlight that producing a fuel cell from cradle to gate—from the components to the assembly and the shipping to the bus OEM—is much less carbon intense. It's probably 70% less than a battery, because it's a manufactured product and you use just material that is assembled and that doesn't have the same carbon intensity. Some studies have shown that in the overall life cycle of the product, manufacturing fuel cell engines probably has a carbon footprint similar to manufacturing another internal combustion engine.