It's a fine line between specifics and ambiguity. The law gives you as much as you can. It's in the modalities and the regulation. There's law, and then there's a regulation, and then there are the guidelines.
We have a law. What are the regulations? What are the guidelines that ministries can use? I'm not sure that the federal government has figured out quite how to get from there to the third tier, to where you can be as precise as you need to be within a frame.