SACRAMENTO — California on Thursday began requiring people to wear masks in most indoor spaces and some outdoor ones as it fights the coronavirus. Here are details of the statewide guidance.

Where and When Are Masks Required?

— Inside or in line to enter indoor public spaces.
— In hospitals, pharmacies, medical clinics or other healthcare offices.
— While waiting for and riding public transportation, taxis or ride-sharing services such as Uber and Lyft. Drivers should also wear masks.
— In workplaces that require interacting with the public, where food is prepared, packaged or delivered, or when sharing common spaces such as elevators and hallways.
— In office settings where people cannot physically distance.
— While outside if it’s not possible to stay six feet away from others.

Who is Exempt?

— Children age 2 and younger.
— People with medical, mental health or developmental issues that prevent it.
— People who are deaf or have hearing loss and those who communicate with them if seeing someone’s mouth is essential.
— Workers who would violate workplace safety rules by wearing one.
— People eating and drinking at restaurants.
— People swimming, walking, hiking, biking, running, or doing other outdoor activities where they can stay 6 feet from others.
— People in jails and prisons, which have their own guidance on face coverings.