Versions of DEEM and
Calendex Now Publicly Available
Since their inception the
TAS Exposure-series programs, the DEEM program
(staring in the mid 1990’s), and the
Calendex program (in the late 1990’s)
have been made available by licensing agreement
to federal, state and foreign government
users and commercial end users, and by special
arrangements with university researchers.
Technical Assessment Systems, and, later,
Novigen Sciences, Inc., developed the recipe
translation factors at considerable expense
with no government funding and Durango Software
received no government funding to develop
the DEEM and Calendex programs. Licensing
fees were based on a need to recover the
development, QA, documentation, SAP review,
distribution, and user support costs of
these programs.
In 2001 Novigen Sciences
received funding from EPA to review and
complete the FCID database so that EPA would
be able to make publicly available versions
of the translation factors and RACS/FF intake
amounts for all individuals in the 1994-96,
1998 CSFII. For a number of years EPA sought
to make its exposure assessments and the
software used in making these assessments
more open for public review. In 2003 EPA
decided that it would only use publicly
available software for this purpose in the
future. As a result, in 2003 Exponent and
Durango Software changed their distribution
policy to make the FCID versions of DEEM
and Calendex publicly available, in the
sense that they would be made available
to all requestors for a moderate annual
licensing fee.
The versions that would
be released would include all of the features
available at the time of licensing. Improvements
to these programs would be made available
to users in the subsequent year as the annual
license agreements were renewed. In addition,
Durango Software has developed this web
site to disseminate as much information
as possible in order to further document
the computational capabilities and methods
of these programs and to provide more useful
information regarding these programs to
users and potential users.
