Europe and the States now with “Plan 15”—I don't have time to explain, but you can refer to it—are listing all the sources of PFAS and putting a number onto each of those. Then there will be a plan for action, and the road map is very clear with dates like 2025 and 2026 being the moment when those remediations start, depending on the types of sources, with landfill being at the forefront of that list.
As a class, Canada has still not listed PFAS as a class. We're right now looking at the sum of 28 or 18, depending, on the list. The States has done the same—still with individual PFAS, but not the class—whereas in Europe they're looking at action on the full class of PFAS, which is definitely the way to go.
I heard that the drinking water guidelines might include a class, but as far as I know it has not been done so far. Among thousands and thousands, 28 PFAS is really nothing—let's face it.