TDWG 2022 - a Hybrid Conference

Stronger Together: Standards for linking biodiversity data

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TDWG 2022 Logo

TDWG 2022

17–21 October

Last updated 10 August 2022

The Biodiversity Information Standards (TDWG) annual conference in 2022 will be a hybrid meeting, hosted in Sofia, Bulgaria.

Stronger together - in person or online! #tdwg2022

Although pandemic restrictions appear to be waning in many countries, we expect that many organizations will still be limiting professional travel in the fall of 2022. Consequently, TDWG 2022 will be a hybrid conference; in-person for those who can travel, and virtual for those who cannot. The conference will accommodate symposia, workshops, contributed oral and poster presentations, demos, and discussions, as well as keynotes and social events. Session timing will be anchored to the working hours of Sofia, Bulgaria, where the in-person conference will be held. (UTC+3; EEST during the conference.) Sessions will be streamed live, as well as recorded and posted for people participating remotely (registration required).


17 August 2022 - Last day to switch in-person registration to virtual with full refund of the difference (minus credit card processing fees). Contact for more information.

Register for TDWG 2022 - Regular registration rates now in effect for in-person attendees

Call for Abstract Submission - 1 July 2022, now closed (contact with questions)

Call for Proposals for Organized Sessions - 15 April 2022, now closed


Early Registration is now open!

Register for TDWG 2022

Registration costs differ for in-person or virtual participation. As in past years, registration fees include a discount structure, and help to defray the cost of abstract publication. Special discounts are in place for students, post-docs or early career researchers, and participants from low/low-middle income nations. You can even donate funds to support registration of those in need. Check out the link above for full details. When you are ready, use the button there to complete your registration.

The early registration deadline (22 July) for in-person participation has now passed and regular registration rates are now in effect.

All presenters at TDWG 2022 must be registered. If you are listed as a presenter on an abstract for the conference, you must be registered before your abstract will be published. Please do this as soon as possible so that we can create the program. If you are unsure whether you will attend in person or virtually, there is no penalty for registering for virtual participation and later upgrading to in-person status. There is a penalty (after 17 August) for downgrading registration (see Terms & Conditions on registration link).

If the cost of registration is a barrier to your participation in this conference, please contact and briefly state why this is a barrier.

Virtual registration includes

  • Zoom links to live streamed in-person sessions
  • Links to content on demand for sessions you may have missed
  • Link to join dedicated TDWG2022 Slack workspace to interact, ask questions, join in the conversation for all sessions whether viewed live or on-demand.

In-person registration includes

  • All benefits of virtual registration (above)
  • Access to all sessions at the conference
  • A welcome reception on Sunday evening (from 5–7 PM 16 October) is included in registration. Pick up your name tag and other registration materials and greet fellow attendees.
  • The conference banquet, also included with in-person registration, will be held at Restaurant Vodenitzata on the evening of the 20th. Transportation will be provided.
  • A full-day field trip to Rila Monastery, a UNESCO World Heritage site, on Wednesday 19 October.

Benefits of being a TDWG member

Individual TDWG members and up to five representatives from member institutions enjoy a discounted normal registration. Not yet a member? Become an individual member or update your membership before registering for TDWG 2022. All current members (or the primary contact for institutional members) should have received an email (in early May) with discount codes. Members should know their code before registering.


Abstracts are required for all contributions listed in the program (oral presentations and virtual posters) and will be published in our open access journal, Biodiversity Information Science and Standards (BISS) as TDWG Proceedings 2022. Presenters are required to complete conference registration before abstracts can be published.

The call for abstracts deadline is now passed. Please see the list of organized sessions for symposia accepting contributions. Alternatively, open contributions for talks and virtual posters/infographics will also be accepted. Please address questions about abstracts to

Update 8 July 2022: Notification of provisional acceptance of abstracts. All currently submitted abstracts (check your ARPHA dashboard to see) have provisional acceptance for inclusion in TDWG 2022. You will not be able to see any flags used by editors to indicate this. Keep an eye out for requests for revisions.

Hosts and in-person logistics

TDWG 2022 is hosted by:

who cordially invite you to experience Sofia in-person and virtually.

Pre-conference excursions are available, see details. See also options for sightseeing and museums to visit during your stay.

Conference venue

TDWG 2022 will be held at the Grand Hotel Millennium Sofia, a 5-star hotel located in the heart of the city and within walking distance of the vibrant city center, an area filled with iconic historical and cultural sights, vast green parks and numerous government institutions. See the 360˚ tour of the Conference Center 4th floor.


Special rates have been secured for delegates at the Grand Hotel Millenium Sofia, although other options are also available. See details...

Visa requirements

If you are attending the conference in person, please secure any necessary documents or visas prior to travel. See details.

COVID updates

The Ministry of Foreign Affairs for the Republic of Bulgaria has provided the following guidance last updated 1 May 2022. Additional information is available from the European Union.

The Grand Hotel Millenium Sofia includes in its hotel policies, information specific to the conference venue and hotel, detailed further in "Millenium Prime."

It is recommended that in-person participants bring and wear high-quality masks during the conference to prevent contracting and/or spreading COVID-19. Hotel staff will be required to mask during the event. Further updates on local conditions and requirements will be provided closer to the time of the event.

Medical labs near the hotel and city center offer PCR or rapid antigen tests for COVID.

TDWG now has a liability disclaimer and release policy regarding COVID-19 and relevant to in-person conference attendees.

Travel insurance

It is highly recommended that those traveling to the conference in person should secure travel insurance to cover potential delays or other mishaps that may be encountered.


The conference will take place 17–21 October with full days of events starting at 9 AM (UTC+3; EEST) in Sofia, Bulgaria. A Welcome Reception will be held Sunday 16 October from 5–7 PM.

A schedule will be available no earlier than late August.

Working Sessions

Working sessions of the TDWG Interest Groups, Task groups, and Functional Subcommittees will be held separately after the conference. Details TBD. There may be time at the conference for some IG/TG meetings depending on program space.


TDWG gratefully acknowledges the generous financial or in-kind support of TDWG 2022 by the following organizations:

Global Biodiversity Information Facility logo Atlas of Living Australia logo
DiSSCo logo Pensoft logo
Field Museum logo LifeWatch ERIC logo

Interested in becoming a TDWG 2022 supporter?

Please download the following prospectus to find out how and why you can help.

Code of Conduct

By participating in TDWG 2022, you agree to abide by our Code of Conduct.

Contact Us

Please send questions to

Additional Information

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