I may be over complicating this, but I have been trying to figure out when the first restaurant health inspection occurred and what law/act was passed to enforce them.

I read about the 1906 Pure Food and Drug Act, but from what I could tell, that act was only for processing plants with meat products. I also read about the 1938 Federal Food, Drug, and Cosmetic Act which seemingly was just a more in-depth analysis of the food's ingredients.

SO: What act or law was passed to permit and enforce health inspections in restaurants?

EDIT: For a bit more elaboration, I would like to know specifically about when the United States implemented health inspectors into restaurants.

(This is my first question, if I made an error in the format, my apologies.)