Walmart is requiring all of its corporate employees to be vaccinated against the coronavirus by early October. 

In a memo to employees, Walmart President and CEO Doug McMillion said that all “market, regional and divisional associates who work in multiple facilities and all campus office associates” will need to be vaccinated by Oct. 4.

This policy also includes new hires.

McMillion said the company has policies to address those who cannot get vaccinated due to medical issues or religious reasons.

“We believe we have an important role to play and believe the requirement for vaccinations for our leaders is key to driving toward an end to this pandemic,” McMillion said. “Let’s set the example.”

Walmart has been using a phased approach for reopening its offices, and is only allowing limited capacity, McMillion said in his memo.

He added that the company hopes to be “closer to pre-pandemic levels” after Labor Day, but will continue to monitor the situation to determine if any adjustments need to be made.

Walmart is the latest company requiring vaccinations to return to work locations COVID-19 cases increase across the country because of the delta variant.

Tech giants Google and Facebook announced similar vaccination policies earlier this week.

Earlier on Friday, Walmart said it was making masks mandatory for all employees regardless of vaccination status in areas of substantial or high transmission of COVID-19. Customers are “strongly” encouraged to wear masks, though it won’t be required.