Join us in-person in Cambodia or participate online from anywhere in the world.
IWA 4 RWHM 2026 will be held as a hybrid conference, enabling both in-person and online participation to maximize global accessibility and inclusiveness.
To promote global equity and knowledge sharing, online participation will be free of charge for participants from Low and Middle Income Countries (LMIC), as defined by World Bank classifications.
Before 15 July 2026
| Category | IWA Member | Non Member |
|---|---|---|
| Professionals / Academics | $450 USD | $570 USD |
| Students (with valid ID) | $300 USD | $360 USD |
| LMIC Participants | $300 USD | $360 USD |
| Students of LMIC | $200 USD | $240 USD |
| Accompanying Person | $150 USD | $150 USD |
15 July - 20 August 2026
| Category | IWA Member | Non-Member |
|---|---|---|
| Professionals / Academics | $600 USD | $720 USD |
| Students (with valid ID) | $400 USD | $460 USD |
| LMIC Participants | $400 USD | $460 USD |
| Students of LMIC | $260 USD | $300 USD |
| Accompanying Person | $150 USD | $150 USD |
After 20 August 2026
| Category | IWA Member | Non Member |
|---|---|---|
| Professionals / Academics | $750 USD | $870 USD |
| Students (with valid ID) | $500 USD | $560 USD |
| LMIC Participants | $500 USD | $560 USD |
| Students of LMIC | $330 USD | $370 USD |
| Accompanying Person | $150 USD | $150 USD |
Presenters
FREE
Access code issued automatically upon paper acceptance
Registered Participants
FREE
Pre-registration required · Personal access code issued by email
General Public
FREE
Selected keynote sessions only · Open live stream, no registration required
Online participation is free but pre-registration is required for all sessions except open keynotes. A personal access code will be issued upon registration. Promoting global inclusivity and knowledge sharing.
Recorded presentations will be made available after the conference. Availability depends on presenter consent, collected at the time of submission.
OpenWith presenter consent
Freely accessible to the general public — no registration required
RestrictedWithout consent
Not published · presenter's data and intellectual property are protected
Visa Applications:Please apply for your Cambodian tourist visa well in advance. Cambodia offers two convenient options — online e-Visa (evisa.gov.kh, processing ~3 business days) or Visa on Arrival at major airports and border crossings.
Tourist Visa (T)
$30 USD
e-Visa or on arrival · 30-day stay
ASEAN nationals Visa-free
$0
Vietnam, Thailand, Laos, Myanmar, Indonesia, Malaysia, Philippines, Singapore, Brunei · up to 30 days
The organizing committee can provide invitation letters upon request.
Funding & Grants: We recommend securing funding early, as many institutions require 2-3 months notice for international travel approval.
IWA Membership registrationjoin.iwaconnectplus.org
2026 HIC/LMIC Country Classification (PDF)worldwatercongress.org
Cambodia e-Visa applicationevisa.gov.kh
Registration portal opens 15 June 2026
Register NowRegister for Technical and Cultural Tour Now!Questions? Contact us at info@rwhm2026.org