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EDMUND G. BROWN JR.
Governor

State of California—Health and Human Services Agency
California Department of Public Health


March 3, 2023


TO:
All Californians

SUBJECT:
COVID-19 Disease Control & Prevention

​​​​​​​​​​​​Note: This Guidance is no longer in effect and is for historical purposes only.



State Public Health Officer Order of March 3, 2023​​

To protect all Californians, it is important to continue to control the spread of COVID-19 in our homes, workplaces, and communities. In order to detect infections early and limit transmission of the disease, public health officials across the state have undertaken a multi-pronged approach, which includes encouraging vaccination and boosters, offering and promoting testing and treatment, promoting public health practices like mask wearing, and improved indoor ventilation, and supporting recommended isolation of those infected and appropriate testing and masking of those exposed to COVID-19.

Effective March 13, 2023, CDPH updated isolation recommendations, in alignment with CDC Recommendations for Isolation and Precautions for People with COVID-19 .  Individuals who have tested positive for COVID-19 should continue to isolate for 5 days, but may leave isolation after 5 days, if they are feeling well, symptoms are improving and are fever-free for 24 hours.  An updated definition of infectious period is also included to align with the updated isolation recommendations of persons infected with COVID-19. 

The COVID-19 vaccines and boosters remain the most effective strategy in preventing infection, disease, and serious illness and death from COVID-19. Persons who are not up-to-date on COVID-19 vaccinations continue to be more likely to get infected and spread the virus which is transmitted through the air and concentrates indoors.

CDPH continues to monitor the science and data that continue to evolve regarding Sars CoV-2 virus, and to assess conditions on an ongoing basis. California must remain vigilant and for these reasons, in order to continue to mitigate the spread and impact of COVID-19 disease, limited and temporary public health requirements remain necessary at this time.​

NOW, THEREFORE, I, as State Public Health Officer of the State of California, order:

1. All individuals must follow the  requirements in the Guidance for the Use of Face Coverings issued by the California Department of Public Health through April 2, 2023, after which time they will become recommendations. I will continue to monitor the scientific evidence and epidemiological data and will amend this guidance as needed by the evolving public health conditions and recommendations issued by the federal Centers for Disease Control & Prevention (CDC) and other public health authorities.


2. For the purposes of the California Department of Public Health's recommendations regarding isolation and quarantine for persons infected with or exposed to COVID-19, the following definitions apply

  • ​"Close Contact" means the following:

    • ​ In indoor spaces 400,000 or fewer cubic feet per floor (such as home, clinic waiting room, airplane etc.), a close contact is defined as sharing the same indoor airspace for a cumulative total of 15 minutes or more over a 24-hour period (for example, three separate 5-minute exposures for a total of 15 minutes) during  a confirmed case's infectious period.

    • ​In large indoor spaces greater than 400,000 cubic feet per floor (such as open-floor-plan offices, warehouses, large retail stores, manufacturing, or food processing facilities), a close contact is defined as being within 6 feet of the confirmed case for a cumulative total of 15 minutes or more over a 24-hour period during the confirmed case's infectious period.

Spaces that are separated by floor-to-ceiling walls (e.g., offices, suites, rooms, waiting areas, bathrooms, or break or eating areas that are separated by floor-to-ceiling walls) must be considered distinct indoor airspaces.

  • Infectious Period is defined as:

    • ​​For symptomatic confirmed cases, 2 days before the confirmed case had any symptoms (symptom onset date is Day 0) through Days 5–10 after symptoms first appeared AND 24 hours have passed with no fever, without the use of fever-reducing medications, and symptoms have improved, OR

    • For asymptomatic confirmed cases, 2 days before the positive specimen collection date (collection date is Day 0) through Day 5 after positive specimen collection date for their first positive COVID-19 test.

For the purposes of identifying close contacts and exposures, symptomatic and asymptomatic confirmed cases who end isolation in accordance with CDPH Isolation and Quarantine Guidance are no longer considered to be within their infectious period.

  • Confirmed Case is defined as:

    • A person who has received a positive result of the presence of SARS-CoV-2 virus as confirmed by a COVID-19 viral test or clinical diagnosis


3. The California Department of Public Health will continue to offer public health recommendations and guidance related to COVID-19based on the scientific evidence and epidemiological data. I strongly encourage Californians to follow such guidance to keep themselves, their families, and their communities healthy.


4. This Order supersedes the October 13, 2022, State Public Health Officer Order, the June 8, 2022, State Public Health Officer Order, the August 28, 2020, State Public Health Officer Order, the July 13, 2020, State Public Health Officer Order, the May 7, 2020, State Public Health Officer Order, and the March 19, 2020, State Public Health Officer Order.


5. This Order goes into effect on March 13, 2023, at 12:01 a.m.


6. This Order is issued pursuant to Health and Safety Code sections 120125, 120140, 120175,120195 and 131080 and other applicable law.​​




Doctor Aragon's Signature


Tomás J. Aragón, M.D., Dr.P.H.

Director & State Public Health Officer

California Department of Public Health