California has requirements and recommendations for mega-events to reduce COVID-19 transmission. 

On this page:


What mega-events are

Mega-events are indoor events with 1,000 or more people and outdoor events with 10,000 or more people.

This includes events like:

  • Conventions, conferences, and expos
  • Concerts, shows, and nightclubs
  • Sporting events
  • Live events and entertainment
  • Fairs, festivals, and parades
  • Theme parks, amusement parks, and water parks
  • Large private events or gatherings
  • Large races, marathons, and endurance events
  • Car shows

Indoor events

For indoor events with 1,000 or more people, attendees must provide proof that they: 

  • Are fully vaccinated, or
  • Have received a negative COVID-19 test

After September 20, 2021, attendees cannot self-attest to verify vaccination status or a negative test result.

Find a testing location Get your digital vaccine record

Outdoor events

For outdoor events with 10,000 or more people, the California Department of Public Health (CDPH) recommends that attendees provide proof that they: 

  • Are fully vaccinated, or
  • Have received a negative COVID-19 test

After September 20, 2021, CDPH recommends venue and event operators to:


Masks at events

All attendees must follow the CDPH Guidance for the Use of Face Coverings


More information

These measures are in effect through November 1, 2021.

CDPH will review these measures by October 15, 2021, to assess the need for measures after November 1, 2021.

Find more details about the CDPH requirements and recommendations for mega-events: