Ishihara Sangyo Kaisha Ltd. (ISK) has been active in the discovery, development and registration of new agrochemicals for over 60 years. Within the past 3 years, ISK Biosciences has been one of the most prolific registrants of new agrochemicals in North America, having registered two new fungicides and a new herbicide through joint review between US EPA and Canada PMRA. Additionally, a new diamide insecticide, cyclapryn™ was registered through joint review between Canada, Australia, and the USA this past year. In many of these registration actions, Mexico has been an observer country. The registrant experience with joint review with respect to harmonization of endpoints in assessment and MRLs, are presented, as well as examples where differences of opinion between regulators were identified and resolved. The perceived benefit of joint review from a registrant perspective, given the recent experience with these registration actions, is provided as a basis for further discussion.

Recent experience of a registrant with joint review of new agrochemicals

256th National Meeting (2018)

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