Decision on amendments to the Data Assurance Guidance (DAG) submissions for Electricity and Gas Transmission, Electricity and Gas Distribution and Electricity System Operator Licensees

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This is our decision following the consultation on proposed amendments to the Data Assurance Guidance (DAG) submissions for Electricity and Gas Transmission, Electricity and Gas Distribution and Electricity System Operator Licensees.

The requirements are set out in the Data Assurance Guidance (DAG) including associated reporting templates.

These requirements will take effect from today, 31 May 2022.

Main document

[RIIO 2 DAG Decision Letter [PDF, 91.75KB]

](https://www.ofgem.gov.uk/sites/default/files/2022-05/DAG_Decision_Letter_2022.pdf)

Subsidiary documents

[DAG Guidance Document v2.1 (Clean Version) [PDF, 509.13KB]

](https://www.ofgem.gov.uk/sites/default/files/2022-05/DAG_Guidance_Document_%20v2.1%20%28Clean%20Version%29.pdf)

[DAG Guidance Document v2.1 (Mark up) [PDF, 701.15KB]

](https://www.ofgem.gov.uk/sites/default/files/2022-05/DAG_Guidance_Document_Mark%20Up%20v2.1.pdf)

[NetDAR Template v2.1 [PDF, 209.45KB]

](https://www.ofgem.gov.uk/sites/default/files/2022-05/NetDAR_Template_v2.1.pdf)

[Exceptional Submission Assurance Template v2.1 [PDF, 172.08KB]

](https://www.ofgem.gov.uk/sites/default/files/2022-05/Exceptional_Submission_Assurance_Template_v2.1.pdf)

[Risk Assessment Template v2.1 [XLSX, 257.41KB]

](https://www.ofgem.gov.uk/sites/default/files/2022-05/Risk_Assessment_Template_v2.1.xlsx)

[Exceptional Submission Assurance Template v2.1 (Word Version) [DOCX, 44.62KB]

](https://www.ofgem.gov.uk/sites/default/files/2022-06/Exceptional_Submission_Assurance_Template_v2.1%20%28Word%20Version%29.docx)

[NetDAR Template_v2.1 (Word Version) [DOCX, 62.59KB]

](https://www.ofgem.gov.uk/sites/default/files/2022-06/NetDAR_Template_v2.1%20%28Word%20Version%29_0.docx)

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