State health officials are recommending that districts put mask mandates in place whenever schools or their surrounding counties reach “substantial” levels of COVID transmission.

In a Zoom call with New Hampshire educators Wednesday, epidemiologist Dr. Ben Chan said the state is recommending school districts require masks for everyone when the level of community transmission is “substantial” even if there is no COVID-19 transmission in schools, and also when there are multiple COVID-19 clusters or a larger outbreak in the school, even if the level of community transmission is low or moderate. More info: