As the COVID vaccine rolls out at pharmacies across the U.S., Costco (COST) has announced which of its wholesale stores will begin offering shots now.

Costco said the COVID vaccine will be administered through its pharmacies as soon as they are available and in accordance with the Centers for Disease Control and Prevention and state guidelines.

Guidelines for vaccinations are prioritizing those that are at higher risk of contracting the coronavirus with healthcare workers and long-term care facility residents receiving the first round of the COVID vaccine rollout, followed by those that are 65 and older and frontline workers, depending on eligibility and availability by state.

Costco said it is being provided a limited number of COVID vaccines in select locations, which will most frequently be the Moderna shot. Costco also said its website will be updated frequently as more vaccination locations become available at its stores.

To date, the company is offering COVID vaccines at its store pharmacies in California, New York, Oregon, South Carolina, Washington, and Puerto Rico.

Costco said that individuals that qualify for the COVID vaccine should not contact the retailer’s pharmacy for a vaccination appointment. Appointments are made online through the Costco website.

Walmart, CVS, RiteAid, and Walgreens also announced that they were opening up their pharmacies for COVID vaccinations with select locations across the U.S. set to provide inoculations.

To date, the CDC has administered over 46.3 million doses of the COVID vaccine to over 34.7 million people. Over 11.1 million people have received both doses of the vaccine, the CDC said.

Shares of Costco were trading at $351.38 as of 12:44 p.m. EST, down 82 cents or 0.23%.

A worker pushes carts outside a Costco Wholesale store on May 31, 2006, in Mount Prospect, Illinois. Tim Boyle/Getty Images