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_21_21 Deferred Active T&SC Appendix O
Mod_20_21 Deferred Active T&SC Appendix O
Mod_19_21 Recommended for Approval Active Section B
Mod_18_21 RA Decision: Approved (Not Vetoed) Active Section G 04/11/2021
Mod_17_21 RA Decision: Approved (Not Vetoed) Active Section F,Section G 16/11/2021
Mod_16_21 RA Decision: Approved (Not Vetoed) Active Section H 29/09/2021
Mod_15_21 Deferred Active Section F
Mod_14_21 Recommended for Approval Active
Mod_13_21 RA Decision: Approved (Not Vetoed) Active Agreed Procedure 15,Section G 13/08/2021
Mod_12_21 RA Decision: Approved (Not Vetoed) Active Section B 13/08/2021
Mod_11_21 RA Decision: Approved (Not Vetoed) Active Agreed Procedure 12,Section B 13/08/2021
Mod_09_21 RA Decision: Approved (Not Vetoed) Active T&SC Appendix C,T&SC Glossary 13/08/2021
Mod_02_21 RA Decision: Approved (Not Vetoed) Active Appendix N,Section F
Mod_01_21 RA Decision: Recommended for Rejection Active T&SC Appendix B 13/08/2021
Mod_08_20 RA Direction Active Section B
Mod_01_20 Recommended for Approval Active Section E
Mod_13_19 Recommended for Approval Active