What regulation do you want to see changed?

Personally, I think ammonium nitrate should be managed under PSM. I know there are some regulations for storing it, but my understanding is that the regs are pretty old.

https://edlabor.house.gov/imo/media/doc/Scott%20Adams%20Courtney%20to%20Scalia%20on%20AN.pdf

Why wouldn't you want to regulate this stuff harder?