About EDNA

Screenshot of the Electronic Declarations Tool for National Authorities.

The Electronic Declarations Tool for National Authorities (EDNA) enables National Authorities to prepare annual declarations of Schedule 1, 2 and 3 facilities, other chemical production facilities and aggregate national data (AND).




In this section:


  • EDNA eliminates the need for a paper copy of the declaration.
  • EDNA reduces the need for manual data entry by enabling States Parties to reuse the information that is stored in the database.
  • A CD containing an XML version of a recent declaration may be obtained upon written request, which can be imported into EDNA, pre-filling the database with all Plant Site details.
  • EDNA incorporates features to assist States Parties with the generation of more complete declarations which can then be checked before submission, reducing the need for clarification by the Technical Secretariat.
  • Improved data processing within the TS with the increase in electronic declaration submissions.
  • EDNA allows States Parties to perform data analysis and reporting on data from current or previous declarations.


  • National Authorities can maintain a list of facilities within EDNA, and each year select the facilities requiring declaration.
  • The AND module has an option for automated aggregation of Schedule 2 and 3 facilities data.
  • EDNA includes the OPCW Handbook on Chemicals.
  • EDNA contains a set of warnings to the user for data inconsistencies and for data requirements in accordance with the CWC.
  • EDNA includes a predefined set of reports for data analysis and reporting for declared Schedule 2, 3 facilities and OCPFs and AND.
  • Validation that electronic declaration files generated from other software tools comply with specified formats.
  • Available in OPCW official languages and can also be customised for use in an additional language (except for the Schedule 1 module, which is currently available only in English).

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Declaration Submission

When submitting an EDNA declaration, the folder EDNA generates should be copied to a CD. This CD should then be accompanied with a cover letter and sent to the Declarations branch via the relevant Permanent Representative to the OPCW.

Alternatively, States Parties could submit their EDNA declarations electronically, through the Secure Information Exchange (SIX) system. States Parties that have not registered for the usage of SIX are encouraged to explore this alternative communication channel.

EDNA Development and Training

Training and one-to-one consultations are provided at the Annual Meeting of National Authorities and in the margins of the Conference of States Parties. In addition, training is also available on request at the OPCW Headquarters, subject to advance notice. Training courses on electronic declarations and the use of EDNA may also be offered as part of the regional workshops which are announced in due course.

EDNA User Group Forum (UGF) is an annual event where EDNA users share their experiences with other State Parties and with the Secretariat. Based on the input received during the forum, the regional workshops and bilateral meetings, the Secretariat continues the work on the development on new versions of EDNA software to include additional functionality and strives to meet the expectations of States Parties.

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Contact Information

For enquiries, please contact the Secretariat through the dedicated email address vis@opcw.org.