That attempt is California’s Location Privacy Act. I spoke yesterday evening with Hanni Fakhoury, the Electronic Frontier Foundation’s (EFF) staff attorney focused on how technology intersects with criminal law, to try and understand how the law compares with the two national efforts.
The first and most important thing to understand: California’s Location Privacy Act requires a warrant for any kind of location data generated by any kind electronic device.
The law covers “almost anything with a battery in it,” Fakhoury told me. “We’re not just targeting cellphone tracking and GPS, we’re targeting everything exists now and everything that might exist 10 years from now.”