The Task Force on Reactive Nitrogen reports to the Working Group on Strategies and Review of the Convention on Long Range Transboundary Air Pollution (CLRTAP). It has the long-term goal of developing technical and scientific information, and options which can be used for strategy development across the UNECE (United Nations Economic Commission for Europe) to encourage coordination of air pollution policies on nitrogen in the context of the nitrogen cycle and which may be used by other bodies outside the Convention in consideration of other control measures. Current work focuses on providing options for the revision of Annex IX of the Gothenburg Protocol, developing a report on ‘Nitrogen and Climate Interactions’ and furthering work on Nitrogen Budgets and looking at the impacts of dietary changes on the nitrogen cycle. The outcomes of the European Nitrogen Assessment (to be published in April 2011), will also be reported to the Task Force at its 6th meeting next year.