Massachusetts auto right-to-repair (2012, 2020)
Massachusetts voters approved a 2012 law forcing automakers to share diagnostic codes with independent repair shops. In 2020 they passed a follow-up extending access to wireless telematics data, over automaker objections.
Automakers adopted a national memorandum of understanding honoring the 2014 model-year standard.
The state ballot model became the template for repair-access campaigns in other states and sectors.
Massachusetts proved states could force manufacturers to open repair data, the same lever the FTC used against Deere.
