In the early 20th century, an increasing number of cities and states in the US passed policies to ensure safety of milk.
As the president of the association pointed out in 1960: "Today, we sanitarians must be equipped to deal with problems extending throughout the entire range of environmental health.
We must solve problems of waste disposal, insect and rodent control, air pollution, housing, radiological poisoning and many others.
Additionally, with more Americans eating out more often than ever before, the food service industry has become an area of responsibility such as would have been impossible for our founding Members to imagine.
Recently the packaging of prepared foods of the 'heat and eat' variety has developed as a rapidly expanding industry that poses new sanitation problems for you to solve."