MM5 3D-Var was developed by the University Corporation for Atmospheric Research (UCAR). UCAR makes no proprietary claims, either statutory or otherwise, to this version and release of MM5 3D-Var and consider MM5 3D-Var to be in the public domain for use by any person or entity for any purpose without any fee or charge. UCAR request that any MM5 3D-Var user include this notice on any partial or full copies of MM5 3D-Var. UCAR further request that the user credit UCAR in any publications that result from the use of MM5 3D-Var. The name UCAR shall not be used or referenced in any advertising or publicity which endorses or promotes any products or commercial entity associated with or using MM5 3D-Var, or any derivative works thereof, without the written authorization of UCAR and Penn State.

MM5 3D-Var is provided by UCAR on an "AS IS" basis and any warranties, either express or implied, including but not limited to implied warranties of noninfringement, originality, merchantability and fitness for a particular purpose, are disclaimed. UCAR will not be obligated to provide the user with any support, consulting, training or assistance of any kind with regard to the use, operation and performance of MM5 3D-Var nor to provide the user with any updates, revisions, new versions, error corrections or "bug" fixes. In no event will UCAR be liable for any damages, whatsoever, whether direct, indirect, consequential or special, which may result from an action in contract, negligence or other claim that arises out of or in connection with the access, use or performance of MM5 3D-Var, including infringement actions.