Ummm, restaurants are government licensed.
As are the ranch where the beef you plan to grill at home was raised, as was the slaughter house, the butcher, the truck driver, the charcoal maker, the steel foundry that made your grill, the factory that provided the ingredients for yous barbecue sauce, and the company that made your meat thermometer.
You DO use a meat thermometer, don't you, don't you???
Er, I think you missed my point, but that’s OK.