The Market Rules consist of the latest approved Trading and Settlement Code, Agreed Procedures, and any ‘approved’ Modifications which have not yet been incorporated into the main body of the Code or the Agreed Procedures (see Approved Modifications at the Modification Proposals page). It is important to note: a modification may become effective before the published draft of the Code is amended to include the modification.
| Title | Publication Date | Version |
| SEM Trading and Settlement Code | 07 April 2008 | 4.2 |
| SEM Trading and Settlement Code: Appendices | 07 April 2008 | 4.2 |
| SEM Trading and Settlement Code: Glossary | 07 April 2008 | 4.2 |
| SEM Trading and Settlement Code (CHANGES TRACKED) | 07 April 2008 | 4.2 |
| SEM Trading and Settlement Code: Appendices (CHANGES TRACKED)) | 07 April 2008 | 4.2 |
| Title | Publication Date | Version |
Agreed Procedure 1: Participant and Unit Registration and Deregistration | 03 July 2007 | 4.2 |
Agreed Procedure 2: Interconnector User Capacity Right Calculation and Dispatch Notification | 20 Nov 2007 | 4.0 |
03 July 2007 | 3.2 | |
20 Nov 2007 | 5.0 | |
03 July 2007 | 3.2 | |
10 January 2008 | 5.1 | |
10 January 2008 | 3.3 | |
Agreed Procedure 9: Management of Credit Cover and Credit Default | 03 July 2007 | 3.2 |
20 Nov 2007 | 4.0 | |
Agreed Procedure 11: Market System Operation, Testing,Upgrading and Support | 25 April 2008 | 3.3 |
03 July 2007 | 3.2 | |
03 July 2007 | 3.2 | |
03 July 2007 | 3.2 | |
20 Nov 2007 | 4.0 | |
10 January 2008 | 3.3 | |
20 Nov 2007 | 2.0 | |
SEMO is a joint venture between EirGrid plc and SONI Limited
