The idea of including “alterations” is just that...everybody understands why constructing a bridge and why it would be regulated in the way it's proposed here. Vis-à-vis alterations, a series of alterations may have a significant impact on the traffic capacity of a bridge, and this is really what it's about---having regulations that will make sure that through alterations you may have an impact. When you impact traffic, the GIC is informed and then can approve it, but it's just not to leave decisions to the industry that may impact the traffic at the border.
In that respect, these provisions are neutral in that they apply the same way to everybody. There is no specific reference to any specific crossing in the entire bill as to why this would apply to one and not to the other. All these provisions and all those that refer to “construction and alteration” are applicable to all bridge operators.