The FAO Pesticide Registration Toolkit is a decision support system for pesticide registrars in developing countries. It will assist registrars in the evaluation and authorization of pesticides. The Toolkit can best be considered as a web-based registration handbook intended for day-to-day use by pesticide registrars.Registration staff can use the Toolkit to support several of their regular tasks, including: finding data requirements, evaluating technical aspects of the registration dossier, choosing an appropriate pesticide registration strategy and procedures, reviewing risk mitigation measures