Registration & Fees

Join us in-person in Cambodia or participate online from anywhere in the world.

Hybrid Conference Format

IWA 4 RWHM 2026 will be held as a hybrid conference, enabling both in-person and online participation to maximize global accessibility and inclusiveness.

In-Person Attendance

• Full conference access in Phnom Penh
• Networking and exhibition opportunities
• Optional Angkor Wat technical tour (Days 5-6)
• Gala dinner and cultural events

Online Participation

• Live streaming of keynotes and sessions
• Virtual Q&A and discussion forums
• Access to conference materials
• Online networking platform

Free for Online Participants

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.

In-Person Registration Fees

Category	Regular Registration15 July – 20 August 2026		On-Site RegistrationAfter 20 August 2026
Category	IWA Member	Non-Member	IWA Member	Non-Member
Professionals / Academics	$600 USD	$720 USD	$750 USD	$870 USD
Students (with valid ID)	$400 USD	$460 USD	$500 USD	$560 USD
LMIC Participants	$400 USD	$460 USD	$500 USD	$560 USD
Students of LMIC	$260 USD	$300 USD	$330 USD	$370 USD
Accompanying Person	$150 USD	$150 USD	$150 USD	$150 USD

In-Person Registration Includes:

Access to all conference sessions

Welcome Dinner

Networking Events

Farewell Dinner

Lunch and refreshments

Certificate of participation

Online Participation Fees

Category	Fee	Notes
Online Participants	FREE	Free for online participants - promoting global inclusivity and knowledge sharing

Online participants may register for one or more key events:

Opening Ceremony & Ministerial Plenary
Technical Workshops
Monsoon Leadership Forum
Education & Culture Forum

Important Information for International Participants

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

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.

Useful Links

IWA Membership registrationjoin.iwaconnectplus.org

2026 HIC/LMIC Country Classification (PDF)worldwatercongress.org

Cambodia e-Visa applicationevisa.gov.kh

Ready to Register?

Registration portal opens 15 June 2026

Questions? Contact us at info@rwhm2026.org