COVID-19 Resources for Businesses in San Mateo County & Silicon Valley

At the risk of being redundant, our CVB would like to list all recent information that we have received which you may find relevant. As the COVID-19 situation moves behind us and we start the rebuilding phase, we recommend you use the links below for the latest information related to our region. We assure you that we will update this site as new information becomes available.


The Biden Administration announced that the U.S. will reopen its borders to international visitors on November 8, 2021. Individuals traveling to the U.S. from overseas will be required to provide proof of COVID-19 vaccination and a negative COVID-19 test taken within three days of their departure. Masking will continue to be required on flights, and enhanced contact tracing will be employed for international visitors. However, international travelers will no longer be subject to quarantine mandates. Depending on where you are traveling to after San Mateo County, international travelers might need to show another negative COVID-19 test.


statewide mask mandate will go into effect on Wednesday, December 15 through January 15, 2022. The mandate requires that masks be worn in all indoor public settings by all individuals (regardless of vaccination status) throughout California. Testing rules for mega-events (1,000+ person events) have narrowed for individuals unable to provide proof of vaccination: one day for antigen tests and two days for PCR tests.

In addition, the City of San Francisco now requires patrons to show proof of vaccination for indoor dining, events, shopping, and gyms. Proof of vaccination is a requirement – negative COVID tests or self-attestation are not accepted.

PLEASE NOTE: San Mateo County DOES NOT have this proof of vaccination requirement.


For all indoor events of 1,000 people or more, proof of vaccination is required. Self-attestation or a negative COVID test will not be accepted starting September 20, 2021. Face coverings are now required. 

For all outdoor events of 10,000 people or more,  proof of vaccination is highly encouraged. Self-attestation or a negative COVID test may be used at the discretion of the event's organizer. Face coverings are also required.

These requirements for large gatherings are uniform throughout the State of California.


We also have identified two amazing COVID testing resources we recommended: Lookout Health a local Redwood City-based company that can provide rapid and reliable COVID-19 screening services for your event or workplace, and they also offer a testing concierge service where you can get singular tests at your home, office or hotel room; and Discovery Health Services, who can provide on-site wellness services including Coivd-testing for groups.


As of April 16, 2021, many employers in the hospitality/tourism sector are required to hire back laid-off employees first (before hiring others), if the employees were let go for a reason related to the COVID-19 pandemic. Senate Bill 93 (SB 93) went into law on April 16th with immediate effect, and it impacts employers’ hiring process and decisions through December 31, 2024. This new law affects the following categories of employers: hotels, private clubs, event centers, airport hospitality operations, airport service providers, and building service providers. The experts at Hoge Fenton will conduct a webinar on this subject on April 28, 2021, at 12:00 PM. Read more about this new legislation.