The document announces changes in the membership of the Information Warfare Research Project Consortium (IWRP) under the National Cooperative Research and Production Act of 1993. Several new companies have joined IWRP, while a number of others have withdrawn. The purpose of these notifications is to ensure that antitrust law applies in a way that limits claims to actual damages under certain conditions. Membership in the consortium remains open, and further notifications about changes will be filed in the future.
Simple Explanation
The notice is about a group of companies working together on projects about information warfare. Some new companies have joined, and some have left. This is to make sure everything is fair and within the rules, and the group can still get new members.