Development of a Pilot Decision Support System for Safety Assessment of Genetically Modified Crop Plants The pilot system provides general guidance for safety issues related to crop plants genetically modified for herbicide tolerance, virus resistance through the use of viral coat protein genes and insect resistance through the expression of Bacillus thurigiensis toxin gene. The system uses rice, potato and oil seed rape as examples of crop plants having undergone genetic modification and provides information P in the form of help files - on:

1. the Centre of Origin or Diversity and geographic distribution of the species and its near relatives
2. the breeding system of the species with special reference on the tendency to outcross
3. the weediness potential of the species and its close relatives The help files are derived, principally but not exclusively, from information contained in the biosafety Consensus Documents developed by OECD in cooperation with UNIDO, as well as OECD/UNIDO databases on field trials and commercialisation of GMOs

The system is currently under development. The current version, DTREE-Lite, is intended to provide guidance for further system development. Users are encouraged to provide comments/corrections/suggestions.

DTREE-Lite consists of a series of affirmative statements related to sources of hazards. Choice of hazard depends on information available to the user. Session results are automatically produced linking the hazards selected to potential risks and proposed actions. Selection of statements is NOT obligatory. MULTIPLE selections are allowed unless otherwise instructed.

Correction of selections is NOT permitted. Start a NEW session to correct selections made..

THIS IS AN EXPERIMENTAL VERSION OF THE SYSTEM.

The system is being developed from grants received from the:
Rockefeller Foundation
Federal Office of Environment, Forests & Landscape Swiss Federal Department of the Interior, Bern, Switzerland

** NOTICE: In accordance with Title 17 U.S.C. Section 107, this material is distributed for research and educational purposes only. **