The Centers for Disease Control and Prevention said on Friday that it’s relaxing social distancing guidelines for schools, saying that students can sit 3 feet apart in classrooms, the Associated Press reported.

Schools shut down all over the country at the onset of the pandemic. Once schools started to reopen, the CDC’s guidelines were to have kids sit 6 feet apart, which allowed fewer students in a classroom, resulting in staggered schedules for kids.

“We don’t really have the evidence that 6 feet is required in order to maintain low spread,” Greta Massetti, head of the agency’s community interventions task force, told the AP.

According to a study from the Clinical Infectious Diseases journal, COVID-19 rates did not change at the mandated 6 feet compared to 3 feet at Massachusetts schools, per CNN.

During a COVID-19 briefing on Friday at the White House, CDC Director Dr. Rochelle Walensky said rates wouldn’t change as long as schools are taking proper steps to keep its student safe, according to CNN.

“These include universal and correct use of masks, physical distancing, hand washing and respiratory etiquette, cleaning to maintain healthy facilities and diagnostic testing with rapid and efficient contact tracing in combination with isolation in quarantine and in collaboration with local health departments,” she said.