Phase 1B.3 of the state’s vaccine prioritization plan began Friday, adding approximately 58,000 Boulder County residents and 958,000 Coloradoans to the eligibility list, according to Boulder County Public Health.

People 60 and older, frontline essential workers in grocery and agriculture, as well as people ages 16 to 59 with two or more high-risk conditions are now eligible for vaccinations.

Boulder County residents can find vaccine provider information at: https://boco.org/CovidVaccine or in the state’s vaccine finder .

“We want to remind community members that vaccine supply is still limited, so it will take some time for appointments to be available for those eligible in phase 1B.3,” Chris Campbell, Boulder County Public Health Emergency Management Coordinator, stated in a news release .

Frontline agricultural and grocery store workers should contact their employers to schedule a vaccine appointment, according to the release. If their employer is not offering vaccines, they can contact a local vaccine provider, such as hospitals or pharmacies or call the Boulder County Call Center at 720-776-0822, the release states.

“We coordinate with vaccine providers on a weekly basis and we are gearing up for the 1B.4,” Campbell stated. “It is our understanding that the vaccine supply might significantly increase, and if it does, it will allow providers to scale up already existing clinics and open up more appointments.”

People in phases 1A through 1B.2 can still receive a vaccine if they have not yet been vaccinated, according to the release.