ICI is in the public domain hence there is no copyright on the ICI language or its interpreter's source code. There are no restrictions on how it may be used. ICI is NOT under one of the GNU licenses or any license for that matter. Being public domain implies no ownership of ici and therefore no ability to control how it may be used. ICI is free of any restrictions whatsoever and is truely free software.
The ICI documentation is however under copyright but may be used for any purpose as long as it is not modified and its copyright notice retained. Copyright on the reference manual is held by Tim Long, Canon Information Systems Research Australia and Cambridge University.
The module collection has its own copyright. It is freely usuable however ownership is retained by the authors of the software who may or may not place further restrictions on the software.
These HTML pages are copyright by Andy Newman who reserves all rights (at present).