https://www.theguardian.com/technology/2021/jun/02/elon-musk-tweets-tesla-sec-settlement

Tesla CEO and the Securities and Exchange Commission’s 2019 deal stipulated that Musk would vet any public communications

The US securities watchdog told Tesla last year that CEO Elon Musk had twice violated a settlement requiring his tweets to be preapproved by company lawyers, the Wall Street Journal reported on Tuesday.