Elon Musk to step down as Tesla Chairman, pay $20 million in fine 
Elon Musk will step down as Tesla Chairman for three years and pay a $20-million fine after reaching a deal with the US Securities and Exchange Commission over "misleading" tweets about taking the firm private. Under the deal, Musk will also have to comply with company communications procedures when tweeting about Tesla. Musk has 45 days to leave the post.