About LEI | Common Data File Formats

LEI-CDF Format Version 2.1

The business card information available with the Legal Entity Identifier (LEI) reference data, e.g. the official name of a legal entity and its registered address, is referred to as ‘Level 1’ data. It provides the answer to the question of ‘who is who’. The LEI-Common Data File (CDF) format defines how LEI issuing organizations report their LEI and Level 1 reference data.

The LEI-CDF format version 1.0 was originally developed by the LEI Regulatory Oversight Committee and mandated for all LEI issuing organizations in August 2014. In November 2016, GLEIF published for information the LEI-CDF format 2.0 with the following objectives in mind:

  • Update the LEI-CDF format to reflect lessons learned together with the LEI issuing organizations from the application of the standard since 2014.
  • The ‘LEI Data File format 1.0’ includes several aspects, which limit its applicability to the collection of LEI reference data that identify ‘who is who’ (Level 1 data). The updates aim to overcome these limitations regarding the collection of Level 1 data.

In May 2017, GLEIF published a further update: LEI-CDF format version 2.1. The detailed technical specification document and the corresponding XML schema definition are available for download at the foot of this page. Changes introduced in version 2.1, compared to the LEI-CDF format version 2.0, are minor and backwards compatible. These changes are detailed in section 1.7 (‘Release Notes’) of the technical specification document available below.

Also in May 2017, GLEIF published version 1.1 of the document ‘State Transition Rules for the LEI Common Data File Format (Including Validation Rules)’ (see below), which describes business rules for the issuance, updating, management and publication of Level 1 LEI data according to the LEI-CDF format version 2.1.

GLEIF has published the ‘LEI-CDF V2.1 Implementation Guide’ (see below), which describes changes and updates required, per data field, to convert LEI-CDF format information from version 1.0 to the newer version 2.1.

The GLEIF Concatenated Files, which are available for download, include specific information on an LEI record and related reference data based on the relevant reporting format.

  • Level 1 LEI-CDF Version 2.1 Concatenated File: GLEIF published the first Level 1 LEI-CDF Version 2.1 Concatenated File on 8 May 2017. It contains Level 1 data based on version 2.1 of the LEI-CDF format as made available by LEI issuers that have achieved LEI-CDF version 2.1 capability. This means: The Level 1 LEI-CDF Version 2.1 Concatenated File does not currently cover the complete LEI population. It is published to allow LEI data users a preview of how Level 1 data is reported based on version 2.1 of the LEI-CDF format.

To date, the authoritative source on Level 1 data remains the Level 1 LEI-CDF Version 1.0 Concatenated File, which contains the Level 1 data for the complete LEI population based on version 1.0 of the LEI-CDF format.

For further information, refer to these dedicated GLEIF website pages:

The diagram below shows the structure of the LEI-CDF format version 2.1, including definitions of the data content to be provided.

The LEI Common Data File (LEI-CDF) Format 2.1

Please address questions on the LEI-CDF version 2.1 to leidata@gleif.org.

Relevant Files for Download

Relevant Files for Download

How an LEI can help your business get fit for the future

  • Improved risk management.
  • Increased operational efficiency.
  • More accurate calculation of exposures.
  • Simplified regulatory reporting.
  • Ensured counterparties for any business process.
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Follow five easy steps to apply for an LEI number

  1. Review your LEI requirements.
  2. Explore your LEI issuer's website of choice.
  3. Provide your 'business card' information.
  4. Verify and submit your LEI request.
  5. Make payment.