2.101, which consists of “Commercial Computer Software” and “Commercial Computer Documentation Documentation,” since these terms are used in 48 C.F.R. No. 12.212 or 48 C.R. 227.7202, if applicable. In agreement with 48 C.F.R. 12.212 or 48 C.R. 227.7202-1 to 227.7202-4, where applicable, commercial computer software and commercial documentation of computer software are granted to end-users (a) only as commercial objects and (b) with only the rights granted to all end-users in accordance with current conditions. Unpublished rights are reserved under U.S. copyright law. A free software license gives users of this software the right to use, modify and redistribute creative works and software that are both copyrighted and generally not licensed with proprietary software.
These licenses usually contain a disclaimer, but this feature is not just for free software.  Copyleft licenses also contain a key add-on clause, which must be followed to copy or modify the software, requiring the user to provide source code to the factory and distribute its changes under the same license (or sometimes compatible); effectively to protect derivative works from the loss of original permissions used in proprietary programs. At the request of the licensee, the licensee is required to fully document within 30 days and confirm that the licensee`s software use at the time of application complies with the applicable licensing conditions. The contract holder may not transfer, lease, lease, sell, sub-concede or authorize all or part of the software to be copied and used by another person or corporation that is not specified in Section 2, nor transfer or transfer the agreement to third parties, unless this has been expressly confirmed and agreed in writing with the licensee.