Q: What is Phase 1B? Following CDC Guidelines, the State of California laid out a priority framework on who can get the vaccine. The first shots went to the most vulnerable in the population, under Phase 1A -- health care workers and people who live or work in long term care facilities. The next group is in Phase 1B. You can read more about the phases here. Q: Who's in Phase 1B? Phase 1B is a broad category of eligibility with about 12 million people qualifying in California. It includes Food and Agriculture workers, including those who work in restaurants, grocery stores and farms.