The IAOC has been closely following the discussion on Thailand visa requirements for IETF103 and has been working to find more information for IETF 103 attendees. Please note that it remains the responsibility of each attendee to understand the border entry rules and to comply with them. The IETF will not and cannot give visa advice to travelers. We are able to share the following information: IETF 103 is a conference which falls under what in Thailand is known as MICE - Meetings, Incentives, Conferences, and Exhibitions. The IETF is considered a conference partner of the TCEB (Thailand Conference and Event Bureau) and IETF 103 is now listed on the TCEB MICE calendar: https://www.businesseventsthailand.com/event-calendar The TCEB website has a section on visa requirements for MICE events: https://www.businesseventsthailand.com/article/visa-requirements. Other general visa travel information can be found on the official Ministry of Foreign Affairs of the Kingdom of Thailand site: http://www.mfa.go.th/main/en/services/4908 on behalf of the IAOC Glenn Deen (IAOC Chair)
