MANHATTAN, Kan. (AP) – Kansas State University is altering its mask policy for outdoor settings, citing updated guidance from the U.S. Centers for Disease Control and Prevention.

WIBW-TV reports that starting May 17, those who are fully vaccinated can participate in campus outdoor activities and recreation without a mask, except in crowded settings and venues. Those exceptions may include live performances, parades and sporting events.

The university says masks will still be required in all indoor spaces on university property.

The CDC announced the new guidance in late April, saying fully vaccinated Americans don’t need to cover their faces anymore unless they are in a big crowd of strangers.