Tesla plans to call some workers back to its assembly plant in Fremont, California. A shelter-in-place order in the San Francisco Bay area in effect through May 3rd.

Plant leaders sent messages to workers in the Fremont factory’s paint and stamping operations. They asked them to respond and confirm whether they plan to come to work.

Tesla temporarily shut down its Fremont plant on March 23. The company argued it should be classified as’national critical infrastructure’. Tesla said the factory was an’essential business’.

The Fremont plant produces Tesla’s model 3, Model S, model X, and model Y vehicles. The plant produces models of Tesla’s models.

The Alameda county health officer determined that keeping the plant open was a public health risk. Police Chief Kimberly Petersen told Tesla the rules would not be suspended for the plant.

Violation of the order is a misdemeanor which could carry a fine or imprisonment. Alameda County said in an email to the verge on Sunday that the health order was still in effect.

Ford said on Sunday it was recalling a small crew of workers Monday to prep factories to reopen. The callbacks were voluntary, meaning workers would be paid if they worked but would not be required to do so.

The United Auto Workers union says opening in early May is’too soon and too risky’. Ford and GM are union shops, Tesla is not.

Tesla did not respond to a request for comment from the verge on Sunday. Tesla did n’t respond to the requests for comment.