Even as some tech companies are telling employees they’ll be able to work from home “forever,” others are already planning to have a portion of their workforces back on site as early as this summer.

Google CEO Sundar Pichai told employees on Tuesday that the company plans to reopen “more buildings in more cities” starting July 6, but did not specify which.

Employees at those locations will be able to return to the office, but each will be limited to about 10% building occupancy at first, with plans to grow to 30% capacity by September.

“We’ll have rigorous health and safety measures in place to ensure social distancing and sanitization guidelines are followed,” Pichai wrote in a blog post, “so the office will look and feel different than when you left. Our goal is to be fair in the way we allocate time in the office, while limiting the number of people who come in, consistent with safety protocols.”