Contra Costa County's booster mandate for high-risk workers kicked in Monday.
Workers in law enforcement, emergency response and at homeless shelters are among those required to have a COVID-19 booster shot.
Employees who are not yet boosted will be required to submit to weekly testing.
Sharon Katsuda has the full story in the video above.
Get a weekly recap of the latest San Francisco Bay Area housing news. Sign up for NBC Bay Area’s Housing Deconstructed newsletter.