Governor Holcomb and governors in states and territories all across the U.S. have been notified by the Centers for Disease Control to prepare for coronavirus vaccinations by Nov. 1.

It’s being reported the director of the CDC, Dr. Robert Redfield, has requested governors speed up their permit applications for distribution sites.

The letter describes two unnamed vaccine candidates, each of which would require two doses spaced a few weeks apart. Several vaccines are currently in Phase 3 trials, testing on volunteers.

If any are successful, the U.S. has contracts in place to buy hundreds of millions of doses.

“Right now I will say we’re preparing earnestly for what I anticipate will be reality … that there’ll be one or more vaccines available for us in November, December — and we have to figure out how to make sure they’re distributed in a fair and equitable way across the country,” Redfield said during an interview with Yahoo Finance.

Three vaccines are currently in Phase 3 trials in the United States: those developed by Moderna and the National Institute of Allergy and Infectious Diseases; Pfizer and BioNTech; and AstraZeneca and the University of Oxford.