About ACNS



Automated Copyright Notice System (ACNS) 2.0

Did you get a notice?

If you want more information on the standard computer-readable encoding of copyright notices, please read the specifications below. If you need more information about your specific notice, please use the ISP and rights holder contact information in the notice you received.

This location holds the specification, XML schema and documentation for the Advanced Copyright Notice System 2.0. For the specification, please see the Spec tab.

For questions or comments, please contact info (at...) acns.net.


Copyright 2009-2015 Motion Picture Laboratories, Inc.  This work is licensed under the Creative Commons Attribution-NoDerivs 3.0 United States License.

ACNS stands for Automated Copyright Notice System. It’s an open source, royalty free system that universities, ISP’s, or anyone that handles large volumes of copyright notices can implement on their network to increase the efficiency and reduce the costs of responding to the notices. The system is a flexible design so that it can be implemented on just about any network, using already available network equipment such as routers and packet shapers. It is not intrusive and does not invade the privacy of the networks users, and it let’s the university or ISP enforce its own policies with regard to network abuse and copyright infringement. The system could also be utilized to handle abuse complaints, viruses, worms, trojans, and other malicious network activity. Below you can find links to more information about ACNS and the XML that enables it.