In accordance with the provisions of the Trading and Settlement Code, the Modifications Committee exists to progress Modification Proposals with a view to better facilitating the achievement of the Code Objectives of efficiency, development, financial security, participation, competition, transparency and equity within the Market.

Modifications Committee

The Modifications Committee meets every two months in either Dublin or Belfast. The Committee is charged with the assessment of proposals submitted to them and making decisions on directions for development of the Market. The Committee has the ability to convene Working Groups or undertake public consultations to ensure appropriate consideration and impact assessment is undertaken prior to making any key decisions.  

The Modifications Committee Secretariat is responsible for the coordination and publication of information on meetings, Working Groups, consultations and other activities undertaken by the Committee. The Secretariat may be contacted via balancingmodifications@sem-o.com.

Use the link below to see the full calendar of scheduled meetings. Each meeting event containts the relevant agenda and minutes.

See the meetings calendar

Filter modifications by:


Mod IDTitleMod StatusStageSection AffectedEffective Date
Mod_02_24 Recommended for Approval Active Agreed Procedure 1,Agreed Procedure 4,Section B,Section D,Section F,T&SC Appendix H,T&SC Appendix I,T&SC Appendix O,T&SC Glossary
Mod_01_24 Deferred Active Section F
Mod_13_23 Recommended for Approval Active Section D,Section F,T&SC Appendix E,T&SC Appendix I,T&SC Appendix K,T&SC Appendix O,T&SC Glossary
Mod_11_23 Recommended for Approval Active Section B,Section D,Section F,T&SC Appendix I,T&SC Appendix O,T&SC Glossary
Mod_10_23 Recommended for Approval Active Section H
Mod_09_23 RA Decision: Approved (Not Vetoed) Active Section G 21/12/2023
Mod_08_23 RA Decision: Approved (Not Vetoed) Active
Mod_07_23 RA Decision: Approved (Not Vetoed) Active Section G 28/07/2023
Mod_06_23 RA Decision: Approved (Not Vetoed) Active Agreed Procedure 4,Section F,T&SC Glossary 28/07/2023
Mod_05_23 RA Decision: Approved (Not Vetoed) Active Section F,Section G,T&SC Glossary
Mod_02_23 Recommended for Approval Active Agreed Procedure 1,Section B,Section F,Section G,Section H
Mod_17_22 RA Decision: Approved (Not Vetoed) Active Section E
Mod_08_20 RA Direction Active Section B