Donald Robertson:

The EPA wrote to the Copyright Office opposing exemptions to the DMCA’s anti-circumvention provisions that could have helped expose auto-maker’s fraud.
 We have written previously about the organizations and individuals who opposed exemptions to the Digital Millennium Copyright Act’s (DMCA) anti-circumvention provisions. These drones oppose the rights of users to backup, modify, and study the software and devices that we own. The DMCA’s anti-circumvention provisions create legal penalties for simply accessing your software under your own terms, and raises those penalties even higher should you dare to share the tools needed to do so. It creates real penalties for anyone who wants to avoid Digital Restrictions Management (DRM) controls. The granting of exemptions to these totalitarian rules is a broken and half-hearted attempt to limit the damage these rules bring, granting for 3 years a reprieve for certain specified devices and software.
 The Environmental Protection Agency (EPA) side-stepped this process and sent a letter separately directly to the Copyright Office. In the letter they argued that users should not be able to access and modify the software on their own vehicles. In their estimation, this would enable users to violate emissions controls. So it would be better for them if the hammer of the DMCA remained hanging over the head of every user or researcher who wanted to access the software on their vehicle.