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_12_21 New Active Section B
Mod_11_21 New Active Agreed Procedure 12,Section B
Mod_10_21 New Active Section H
Mod_09_21 New Active T&SC Appendix C,T&SC Glossary
Mod_08_21 New Active Section B
Mod_07_21 New Active Section E,T&SC Appendix A
Mod_06_21 New Active Section G
Mod_05_21 RA Decision: Approved (Not Vetoed) Active Agreed Procedure 9,T&SC Chapter G,T&SC Chapter H 12/03/2021
Mod_04_21 Deferred Active T&SC Appendix B
Mod_03_21 Recommended for Approval Active T&SC Chapter B,T&SC Chapter C
Mod_02_21 Deferred Active Appendix N,Section F
Mod_01_21 Deferred Active T&SC Appendix B
Mod_13_20 RA Decision: Approved (Not Vetoed) Active Section B 12/03/2021
Mod_12_20 RA Decision: Approved (Not Vetoed) Active Section B 12/03/2021
Mod_10_20 RA Decision: Approved (Not Vetoed) Active Agreed Procedure 9,Section G 11/12/2020
Mod_08_20 RA Direction Active Section B
Mod_06_20 RA Decision: Approved (Not Vetoed) Active Agreed Procedure 6,Section D 12/03/2021
Mod_01_20 Recommended for Approval Active Section E
Mod_22_19 RA Decision: Approved (Not Vetoed) Active Section F
Mod_20_19 RA Decision: Approved (Not Vetoed) Active Section F
Mod_13_19 Recommended for Approval Active
MOD_03_19 RA Decision: Approved (Not Vetoed) Active T&SC Chapter E