https://www.mercurynews.com/2021/11/18/californias-myturn-now-scheduling-boosters-for-all-adults/

California’s MyTurn COVID-19 online vaccine scheduler has caught up with the state’s policy from last week and is now booking booster shots for adults without asking that they declare they meet age, health, occupation or residential criteria that would put them at greater risk from the virus.

Visitors to MyTurn.CA.gov can simply state they are at least 18 and at least six months past their last Pfizer or Moderna dose or two months past their Johnson & Johnson shot to schedule a booster.