REMIT reporting guidance
REMIT reporting guidance
Following the revision of REMIT (2024) and of its secondary legislation (2026), ACER is gradually updating its guidance to reflect the revised legal framework. Please check the transition and application dates indicated on each document. Existing documents remain valid until the relevant new provisions apply.
For REMIT policy, transaction reporting or general queries, please use the REMIT query form or visit the REMIT Portal.
For previous versions of ACER documents, see REMIT documents archive.
REMIT reporting guidance
Supporting documents
Quick-reference guides to help market participants, reporting parties and other stakeholders navigate through REMIT reporting obligations. These documents are for information purposes only and do not replace or supersede official ACER guidance documents. For comprehensive obligations, legal requirements and reporting instructions, consult the applicable legislation and official ACER guidance documents.
REMIT reporting guidance
Transaction reporting user manual (TRUM)
TRUM v7.0
Valid until 29 October 2027
• TRUM (main text) (17/12/2024)
• Annex I – Data fields (08/01/2015)
• Annex II – Examples of transaction reporting (30/09/2024)
- XML trade examples (30/04/2021)
- How to submit trading examples for Annex II of the TRUM (06/05/2015)
- Templates for submitting trading examples (30/04/2021)
• Annex III: Reporting of REMIT derivatives contracts under REMIT and EMIR (16/11/2022)
• Annex IV: Guidance on UTI (14/07/2025)
• Annex V: Abbreviations (17/12/2024)
• Annex VI: Additional information on how to correctly report the delivery point or zone (25/09/2026)
- List of accepted EICs (25/09/2026)
• Annex VII – Guidance on reporting lifecycle events (16/11/2022)
• Annex VIII – Guidance on reporting LNG supply contracts under REMIT (30/09/2024)
• Annex IX – Guidance on the definition of organised marketplaces (17/12/2024)
TRUM v8.0
Valid from 29 October 2027
• TRUM (main text) (29/10/2026)
• Annex I: Guidance on reporting lifecycle events in Table 1 and Table 2 (29/10/2026)
• Annex II: Examples of transaction reporting
- How to submit trading examples for Annex II of the TRUM
- Templates for submitting trading examples
• Annex III: Guidance on reporting LNG market and trade data
REMIT reporting guidance
Guideline on REMIT transaction reporting
• Guideline on REMIT transaction reporting (29/10/2026)
• Annex on reporting of energy derivative transactions under REMIT and EMIR (29/10/2026)
REMIT reporting guidance
Guidance on reporting exposure under REMIT
REMIT reporting guidance
Q&As on transaction reporting
Relevant until 29 October 2027
• FAQs on transaction reporting (30/09/2024)
Relevant from 29 October 2027
• Q&As on REMIT transaction reporting (29/10/2026)
REMIT reporting guidance
Manual of Procedures (MoP) on data reporting
Valid until 28 April 2028
• Manual of Procedures (MoP) on data reporting (26/03/2026)
Valid until 29 October 2027
• V.I XML schema for standard contracts (04/07/2024)
• V.II XML schema for non-standard contracts (04/07/2024)
• V.III XML schema for electricity transportation contracts (08/01/2015)
• V.IV XML schema for gas transportation contracts (07/11/2023)
Valid until 28 April 2028
• VI.I XML schema for ENTSO-E fundamental data (08/01/2015)
• VI.II XML schema for electricity nominations (08/01/2015)
• VI.III XML schema for ENTSOG fundamental data (08/01/2015)
• VI.IV XML schema for gas nominations (30/06/2015)
• VI.V XML schema for LNG data (30/06/2015)
• VI.VI XML schema for gas storage data (30/06/2015)
• VIII. XML schema for inside information reporting (26/03/2026)
• IX. List of LNG facilities subject to reporting according to REMIT (23/04/2026)
• List of LNG facilities (23/04/2026)
REMIT reporting guidance
Electronic formats
Valid from 29 October 2027
• XML schema for standard contracts – electricity and natural gas (Table1) (29/10/2026)
• XML schema for standard contracts – LNG (Table1) (29/10/2026)
• XML schema for non-standard contracts (Table 2) (29/10/2026)
• XML schema for electricity transportation contracts (Table 3) (29/10/2026)
• XML schema for natural gas transportation contracts (Table 4) (29/10/2026)
• XML schema for exposure reporting under REMIT (29/10/2026)
REMIT reporting guidance
Q&As on REMIT fundamental data and inside information
• Q&As on REMIT fundamental data and inside information (26/03/2026)
REMIT reporting guidance
Mapping between REMIT Implementing Regulation tables and electronic schemas
Valid until 29 October 2027
• Table 1 vs schema T1 mapping (29/01/2024)
• Table 2 vs schema T2 mapping (06/05/2015)
• Table 3 vs schema T3 mapping (24/03/2016)
• Table 4 vs schema T4 mapping (24/03/2016)
REMIT reporting guidance
ARIS data validation rules
Valid until 29 October 2027
• ARIS data validation rules configuration document (13/07/2026)
• ACER REMIT information system data validation document (13/07/2026)
REMIT reporting guidance
RRM registration
• Requirements for the Registration of Registered Reporting Mechanisms (15/01/2021)
• RRM application form (23/07/2025)
• Non-disclosure declaration (05/03/2015)
• Model Power of attorney (12/02/2015)
• Digital certificate form for physical users (24/01/2019)
• Digital certificate form for machine-machine communication (24/01/2019)
• Videos with instructions on how to access the ARIS System (24/01/2019)
• ARIS public keys (12/02/2026)
• XML schema for ARIS receipts (07/11/2023)
• RRM registration termination form (23/10/2024)
REMIT reporting guidance
List of standard contracts
List of standard contracts provided by ACER is discontinued as of the entry into force of the revised REMIT Implementing Regulation on data reporting.
REMIT reporting guidance
Open letters on data quality
• Open letter on LNG market data quality (27/07/2023)
• Fourth Open Letter on REMIT data quality (22/10/2020)
• Third Open letter on REMIT data quality (26/07/2019)
• Second Open letter on REMIT data quality (19/07/2018)
• Open letter on REMIT transaction reporting data quality (16/02/2017)