The document discusses proposals for a "reverse notice and takedown" system to enable fair uses of copyrighted works protected by technological protection measures (TPMs). It proposes that a fair user could notify a copyright owner of intent to make a fair use circumvention, and if the owner does not respond or allow it, the user could seek a declaratory judgment to enable the fair use. This aims to balance copyright owners' rights with the public interest in fair uses, as required by copyright law but not fully accomplished by the anti-circumvention provisions of the DMCA.