Distribution Policy

Software                
  HEC-RAS
  HEC-GeoRAS
  HEC-HMS
  HEC-GeoHMS
  HEC-SSP
  HEC-RPT
  HEC-ResSim
  HEC-EFM
  HEC-FDA
  HEC-DSS
  CWMS
  Legacy Software

Support Policy

Distribution Policy

Terms and Conditions for Use

HEC Software   It is HEC's policy to make its software available, whenever appropriate. HEC software that we make available for download on our web site may be used by individuals and organizations outside of the Corps of Engineers without charge, subject to the Terms and Conditions for use of HEC Software.

Non-Corps User Support   HEC cannot provide direct user assistance or support for its software to non-Corps users, those needing assistance should review the Support Policy for additional details.  In the past, for non-Corps users, HEC had provided a list of possible vendors for assistance or support for HEC software.  As of 1 October 2008, HEC is no longer providing this list (Vendor List).  USACE counsel has determined that the inclusion of this list could be interpreted as HEC recommending specific vendors over other vendors that are not included in the list.  Therefore, by direction of USACE counsel HEC has discontinued this practice and has removed the list from our web site.  Non-Corps individuals and organizations should use any internet search engine to locate a vendor that can provide support for the HEC software of interest. However, we will respond to all documented instances of program errors.

Computer Source Code  We generally discourage the distribution of HEC source code. The source code is usually only required when porting a program to a different computer or to modify it. If appropriate and available, we will provide the source for these purposes. However, we cannot provide assistance with the code. Source code for components under development, such as HEC-RAS, will not be distributed. During the initial period of development, some routines will be changing frequently. The proliferation of code, that is rapidly becoming out-of-date, is not in the public interest. HEC will make the determination of when the source code is sufficiently stable on a case-by-case basis.

Some software is not placed in general distribution because it is developmental, limited to specific Corps' applications, or not sufficiently documented to release. An example of HEC software that has limited distribution is the Water Control software that was developed specifically for the Corps' water control community and their hardware resources. HEC can and does provide considerable support to Corps offices to implement the software on their equipment.