Another key change comes in regards to unlocking phones. Users won't be able to legally "unlock" phones, or modify the software in a way that allows the operation of a SIM card from another carrier, that have been bought after Jan. 26, 2013. It dramatically modifies exemptions granted in 2006 and 2010, which allowed users to legally unlock their phones.
The Copyright Office concluded that while not every mobile phone is sold unlocked, there are plenty of phones sold that way, and the new rule would not hurt the market.
The Wireless Association, known as CTIA, opposed extending the 2010 exemption, arguing that groups traffic in pre-paid phones which are then unlocked and sold in markets where carriers don't subsidize handsets.
The Librarian of Congress also granted three other exceptions. Vision-impaired people are allowed to use screen readers or other technologies to help them view literature distributed electronically. Movies can be used by educational institutions for noncommercial uses, such as for criticism or commentary, and be modified to enable captions or descriptive audio for people with vision or hearing problems.
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