The ban will last for three weeks, starting Monday and ending December 20.
The Los Angeles County Department of Public Health said all health officials who issued the order last week said all 10 million residents are asked to stay home and wear face masks as long as possible.
All playgrounds and cardrooms will be closed, but beaches, roads and parks will be open to groups living in the same house.
The order reduces the maximum business to 35% for essential industries and 20% for non-essential businesses, personal care services and libraries.
Outdoor businesses, including fitness centers, zoos, botanical parks and batting cages, are reduced in capacity by a maximum of 50%.
The order exempts outdoor church services and protests, which are constitutionally protected rights, the county said.
But the Los Angeles County Sheriff’s Department said it would not enforce the new stay-at-home order, depending on volunteer compliance.
“Since the first State at Home Order was issued in March of this year, we have focused on education and voluntary compliance, with enforcement measures being the ultimate last resort,” the Sheriff’s Department said in a statement to CNN.
“We trust the community and rely on people to assess risk and take appropriate precautions.”
Los Angeles County, the most populous county in the U.S., recently had a record number of new Covid-19 infections and the highest number of deaths in months.
The county had registered Kovid-19 and 395,843 confirmed cases as of Sunday. The county’s test positivity rate is 6.9% on a 7-day average.
The government’s Gavin News said Monday it was considering “tough action”, including bringing back state-of-the-art orders across the state.
Newsme did not mention any proposed specific sanctions but clarified that more stringent sanctions would be imposed in most states.
The governor said he, too, would have to consider the economic consequences that a stay-a-home order could have on the business. He unveiled several plans to ease the impact, including cash grants of up to 25,000 for industries such as restaurants, hospitality, nail salons and bars.
Cherry Mossberg of CNN contributed to this report.
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