Pay attention to the examples on relative risk.
The genesis for this is the Data Quality Act (DQA). Passed by Congress in 2003, anyone can challenge any rule or regulation based on scientific facts.
If a rule isn’t based on sound science, it gets tossed out. The key word is “anyone” can challenge a bureaucratic rule.
Lead is an excellent example of this abuse. Lead poisoning was falling among children and all of a sudden HUD/EPA simply cut the acceptable threshold level in half and viola - epidemic.