Northville Public Schools recently issued the following announcement.
The Northville Board of Education will be acting on masking changes at a Special Call Board of Education meeting on Monday, February 21, 2022 at 7:30 p.m. at Hillside Middle School.
https://www.northvilleschools.org/apps/news/article/1571737
Michigan Department of Health and Human Services released updated masking guidance based on current conditions, expiring their Public Health Advisory on Masking in Indoor Public Settings, including school settings, to reflect that Michigan is entering a post-surge, recovery phase.
Original source can be found here.