Tesla founder and chief executive Elon Musk has made good on his promise to relocate the company’s headquarters from Palo Alto, California, to Austin, Texas, with a Dec. 1 regulatory filing making the move official. “On December 1, 2021, Tesla, Inc. relocated its corporate headquarters to Gigafactory Texas at 13101 Harold Green Road, Austin, Texas 78725,” states the filing with the Securities and Exchange Commission (SEC), which bears the signature of Tesla Chief Financial Officer Zachary Kirkhorn. Texas Gov. Greg Abbott took to Twitter to acknowledge the move, saying that Tesla is now “officially” headquartered in the Lone Star state. The filing formalizes the process of Tesla relocating its headquarters from California to Texas, a move Musk promised in October he would make, though at the time he provided no timeline. Musk told the company’s annual meeting on Oct. 7 that he was excited about the relocation, while making clear the …