Gov. Jared Polis (D-Colorado) announced Sunday that he had extended Colorado’s mask order, but added an amendment that makes maskless indoor gatherings possible.

According to a release from the governor’s office, the previous mandate remains in effect for all schools statewide as well as child care centers, indoor children’s camps, public-facing government facilities, congregate care facilities, prisons, jails, emergency medical and other healthcare settings, and personal services and limited healthcare settings as defined by a public health order.

For counties with more than 35 cases per 100,000 people, the release said, the order applies to groups of 10 or more unvaccinated people gathering indoors.

But the order does allow people to take off their masks in indoor spaces where more than 10 people are gathered, as long as at least 80% of them have shown proof of vaccination.

A spokesperson for the governor said that proof could be in the form of a vaccination card, a picture of the card on a cell phone, or a copy of a person’s immunization records.

Currently, about a third of Coloradans are fully vaccinated. The rollout began last December, but the vaccines did not become available to the general public until April 2. None of the vaccines have been authorized for people under 16.