Question: Is a public health emergency (PHE) ever shorter or longer than 90-day increments? Florida Subscriber Answer: A PHE falls under Section 319 of the Public Health Services Act and is good for a duration of 90 days. However, it may be shortened by the Department of Health and Human Services (HHS) Secretary if it’s determined an emergency no longer exists. A PHE is always extended in 90-day increments, hence why the COVID-19 PHE is now on its 10th extension. In order for the feds to relax regulations and requirements, a number of things must happen in a specific order. Here’s a succinct breakdown of the necessary events that lead to a PHE: