The NSMC meets in a number of formats. Plenary format involves the Northern Ireland Executive led by the First Minister and deputy First Minister and the Irish Government led by the Taoiseach. The task of the Plenary is to take an overview of co-operation on the island and of the North South institutions.
The Council has met twenty seven times in Plenary format and the Joint Communiqués following the Council meetings are available in the Publications section
- Twenty Eighth Plenary Joint Communiqué 13 September 2024
- Twenty Seventh Plenary Joint Communiqué 8 April 2024
- Twenty Sixth Plenary Joint Communiqué 30 July 2021
- Twenty Fifth Plenary meeting - Armagh 18 December 2020
- Twenty Fourth Plenary meeting – Dublin 31 July 2020
- Twenty Third Plenary meeting - Armagh 18 November 2016
- Twenty Second Plenary Meeting - Dublin 4 July 2016
- Twenty First Plenary Meeting - Armagh 11 December 2015
- Twentieth Plenary Meeting - Dublin 5 June 2015
- Nineteenth Plenary Meeting - Armagh 5 December 2014
- Eighteenth Plenary Meeting - Dublin, 3 October 2014
- Seventeenth Plenary Meeting - Armagh, 8 November 2013
- Sixteenth Plenary Meeting - Dublin, 5 July 2013
- Fifteenth Plenary Meeting - Armagh, 2 November 2012
- Fourteenth Plenary Meeting - Dublin, 15 June 2012
- Thirteenth Plenary Meeting - Armagh, 18 November 2011
- Twelfth Plenary Meeting - Dublin, 10 June 2011
- Eleventh Plenary Meeting - Armagh, 21 January 2011
- Tenth Plenary Meeting - Dublin, 5 July 2010
- Ninth Plenary Meeting - Limavady, 14 December 2009
- Eighth Plenary Meeting - Dublin, 6 July 2009
- Seventh Plenary Meeting - University of Ulster at Magee, 23 January 2009
- Sixth Plenary Meeting - Dundalk, 7 February 2008
- Fifth Plenary Meeting – Armagh, 17 July 2007
- Fourth Plenary Meeting – Armagh, 28 June 2002
- Third Plenary Meeting – Dublin, 30 November 2001
- Second Plenary Meeting - Dublin, 26 September 2000
- Inaugural Plenary Meeting - Armagh, 13 December 1999