There's even a federal regulation about how much radiation they're allowed to emit: https://www.ecfr.gov/current/title-21/chapter-I/subchapter-J/part-1020/sect

There's even a federal regulation about how much radiation they're allowed to emit: https://www.ecfr.gov/current/title-21/chapter-I/subchapter-J/part-1020/section-1020.10 https://www.ecfr.gov/current/title-21/chapter-I/subchapter-J...