Submit your proposal to host the 42nd IAHR World Congress

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IAHR is inviting bids to host the 2027 IAHR World Congress, which attracts around 1200-1500 international delegates. Place the international spotlight onto your country by bringing together the world’s leading water experts.

The Congress is the world’s longest standing and a widely recognized global event in the water and environment sector. Held every two years since 1938, the World Congress is the flagship event of IAHR that takes place in different cities and countries around the world, each time with a headline theme that is chosen by the host.

IAHR World Congress

The value of hosting an IAHR World Congress

The event provides a highly visible global platform for hosts to showcase international leadership in the Hydro-Environment sector.

Socio-economic opportunities.
Via the participation of over one thousand expert participants who over a full week shall contribute to local economies and tourism.

The Congress provides a targeted and highly relevant platform for local and national experts, organizations, universities, institutes and businesses to create lasting international relationships.

Local and national water agenda.
The Congress provides the host a unique rallying point to build synergy amongst the local and national water community around national agendas and topics of common and strategic interest.

Who is eligible to submit a proposal?

The candidate host organisation(s) must be legally registered entities with the authority and operational and financial capability to organise and host the IAHR World Congress. Proposals should be submitted by the candidate host organisation(s) with the approval and signature of the legally authorised officer(s).

Deadline for Candidatures

The deadline for submitting candidatures to host the 2027 IAHR World Congress is 31 March 2024.

Where to submit proposal

Candidates are requested to submit an electronic copy to the IAHR Executive Director at:

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