After months of anticipation, California has finally set a date for when all adults will be eligible to get a coronavirus shot.

Here’s what you need to know.

Q: When can I get a shot?

A: Gov. Gavin Newsom announced Thursday that all residents age 50 and up will be eligible for a coronavirus vaccine starting April 1. Beginning April 15, Californians 16 and up will be eligible.

Q: Can I make an appointment now?

A: No, the dates above are when people looking for a vaccine can begin making appointments.

Q: How do I make an appointment?

A: There are a number of ways to book an appointment. You can check with your medical provider or with your county. CVS, Walgreens and some other pharmacies and stores are also offering appointments. Visit Myturn.ca.gov or call (833) 422-4255 for more information. The Bay Area News Group has also put together a roundup of ways to make an appointment.

Q: Is there enough vaccine to go around?

A: There will be eventually, but not right away. Currently, California receives about 1.8 million doses per week. By the first half of April, officials expect that number to rise to 2.5 million. At the end of the month, it should be more than 3 million.

The state’s population is roughly 40 million. About 32.7 million are at least 16 years old. Of that group, about 7.6 million are ages 50-64, meaning they become eligible April 1. That’s in addition to the roughly 6.7 million people 65 and up who are already eligible. Millions more are already eligible because of their work or medical conditions, as well.

The state has already administered roughly 16 million doses, although that doesn’t mean half the eligible people are fully vaccinated yet because two of the vaccines — from Pfizer and Moderna — require two shots, while Johnson & Johnson is just one. About 18% of residents 16 and up are already fully vaccinated and another 16% are partially vaccinated.

Public health experts say they expect vaccines to be widely available by summer.

Q: Is any place in the Bay Area moving faster? 

A: Yes, a couple of counties — Contra Costa and Solano — have already expanded to those 50 and up. The VA is also offering the vaccine to veterans at a faster pace. In Palo Alto, all enrolled veterans can schedule an appointment now.

Q: Will I be able to get my vaccine anywhere? 

Right now, most counties restrict their vaccine appointments to those who live or work in the county. It’s unclear whether that will shift moving forward. Some counties, like Santa Clara, allow people living in the county to get a vaccine at a number of places, from county clinics to health care providers that operate in the county, like Stanford. Others have limited county clinics to specific populations, including those who don’t have private health insurance. Some providers, like Kaiser, will allow members to go somewhere besides their normal medical center for a vaccine if no doses are available locally.

Q: I’m technically eligible now but haven’t been able to get an appointment. Will this make it harder? 

A: It is possible that expanding access will temporarily make the already-frustrating process of trying to snag an appointment even more maddening. Many health care providers have said they will continue to prioritize those who became eligible first — those 65 and up, for instance, or those with certain medical conditions or jobs that risk higher exposure — before moving into other groups. More supply will also help. It’s also worth noting that the more shots that get into arms — any arms — the closer we get to herd immunity, where enough people have either had COVID-19 or been inoculated that the virus has trouble spreading.

Q: With all the canceled appointments lately, am I at risk of losing my spot? 

In the last couple of months, Sutter, Kaiser, Santa Clara County and other vaccine providers have all had to cancel appointments because of supply shortages — sometimes thousands of them. It’s unclear whether that will happen again, but the state is reworking its vaccine distribution system — relying on Blue Shield to make recommendations about where vaccine should be allocated. Blue Shield says it can do a better job of tracking inventory than the state was doing in the past, meaning it should know where supply is adequate and where it is low.

The state will also change allocation from where already eligible populations reside — 65+, essential workers etc. — to where those 16 and up live, meaning the populous Bay Area should get a larger chunk of the state’s vaccine.

One other note: Some of the cancelations, in Santa Clara County specifically, had to do with a misunderstanding about when to use vaccine, with the county using its entire supply in anticipation of getting more for second-dose appointments while other providers set aside doses for those appointments. This week, the state worked out an agreement with Bay Area counties that should streamline the process and limit future cancelations.

Harriet Blair Rowan contributed reporting.