It's defined in the order: https://www.sfdph.org/dph/alerts/files/HealthOrderC19-07-%20Shelter-in-Place.pdf https://www.sfdph.org/dph/alerts/files/HealthOrderC

It's defined in the order: https://www.sfdph.org/dph/alerts/files/HealthOrderC19-07-%20Shelter-in-Place.pdf https://www.sfdph.org/dph/alerts/files/HealthOrderC19-07-%20... The definition is pretty complicated but thorough. Healthcare counts, and there are other categories of "Essential Businesses" (grocery stores, gas stations, banks, hardware stores, plumbers, delivery services, etc. etc.), and you're also explicitly allowed to go to work if it's needed to keep the company alive (inventory, security, pyaroll) or needed to keep the rest of your company able to WFH.