Health officials in Contra Costa, Marin, Alameda, San Mateo and Sonoma counties made the announcement Friday afternoon as the virus continues to spread.
[Ads /]
In addition to the five Bay Area counties, the cities of Fremont, Pleasant Hill and San Francisco have issued similar ordinances for residents, requiring the use of face masks in public areas like essential businesses, common spaces and when riding public transit.
RELATED: Coronavirus pandemic: Face coverings required in San Francisco starting at midnight
San Francisco
In San Francisco, the ordinance went into effect at midnight Friday, with police enforcement beginning April 22 at 8 a.m.
The city made an initial face mask recommendation on April 2.
Friday's ordinance makes face coverings a requirement for those living in or visiting the city.
In terms of what is considered a face covering, residents do not have to use an N-95 mask. A bandana, scarf, towel or homemade mask can also be used, San Francisco officials said.
[Ads /]
Contra Costa County
In Contra Costa County, the order goes into effect April 22. The East Bay county has similar guidelines as other parts of the Bay Area.
Workers and residents conducting essential business, visiting a health care facility or taking public transit must wear a mask or face covering.
RELATED: Coronavirus: How to make a mask, face covering in less than 2 minutes
Children under the age of 12 are not required to wear a mask and those under 2-years-old must not wear a mask because of the risk of suffocation, officials emphasized.
To view the county's order, click here.
Marin County
The face mask order in Marin County goes into effect April 22 and requires similar action by residents.
[Ads /]
Sonoma County
Beginning Friday, residents in Sonoma County must wear face coverings when out in public.
RELATED: Coronavirus impact: New ordinance requires Sonoma County residents to cover face in public to help prevent spread of COVID-19
Alameda County
Beginning at midnight Friday, residents in Alameda County will be required to wear masks. Enforcement will begin at 8 a.m. on April 22, county officials announced Friday.
To view the full order, click here.
San Mateo County
Effective at midnight Friday, residents in San Mateo County must wear a face covering. The order, announced Friday, will not be enforced until April 22 at 8 a.m.
To view the full public health order, click here.
If you have a question or comment about the coronavirus pandemic, submit yours via the form below or here.
Get the latest news, information and videos about the novel coronavirus pandemic here
RELATED STORIES & VIDEOS:
- Live updates about coronavirus outbreak in US, around the world
- Coronavirus data: See how the curve of COVID-19 cases is bending in each Bay Area county
- Everything you need to know about the Bay Area's shelter-in-place order
- Coronavirus Doctor's Note: Dr. Alok Patel gives his insight into COVID-19 pandemic
- Stimulus calculator: How much money should you expect from coronavirus relief bill
- WATCH: ABC7's interactive town hall 'Race and Coronavirus: A Bay Area Conversation'
- What Bay Area tenants need to know about rent payments, eviction amid COVID-19 outbreak
- Here's how shelter in place, stay at home orders can slow spread of COVID-19
- Coronavirus Timeline: Tracking major moments of COVID-19 pandemic in San Francisco Bay Area/
- Coronavirus and the new normal of living in the San Francisco-Bay Area -- COVID-19 Diaries
- Happy hour goes virtual as people try to be sociable while social distancing during COVID-19 crisis
- Coronavirus Outbreak: Here's why you should practice 'social distancing'
- DRONEVIEW7: What the Bay Area looks like during the coronavirus shelter-in-place
- ABC7's drive around San Francisco shows empty streets, businesses shuttered
- Symptoms, prevention, and how to prepare for a COVID-19 outbreak in the US
- List of stores, companies closing due to coronavirus pandemic
- Canceled late fees, free services available amid COVID-19 crisis
- Here's how you can help during COVID-19 pandemic
- How to maintain learning during school closures
- No masks but here are 100+ products that may help protect you against novel coronavirus germs
- Here's a look at some of history's worst pandemics that have killed millions
- Asian community fighting racism, xenophobia, bigotry as world fights COVID-19