Travel and Visa Information
International travel to meetings in the U.S
We advise anyone who may need a visa to attend this SESIV Meeting to apply early. Visa applicants should apply at least 3 months in advance of the meeting. Security-related policies have greatly increased the processing time for visa applications. U.S. consular officers now usually interview applicants as part of the application process.
If you need a letter of invitation, e-mail Synchrotron Environmental Science IV to make your request.
General information about visas
The National Academies maintains a Web site HERE about visa-related issues and travel information for U.S. citizens and non-U.S. citizens.
The State Department maintains a Web site HERE about U.S. visa policy and procedures
- Visa Waiver Program (VWP) for visitors traveling to the U.S.
- Visas for students and exchange visitors in the U.S.
The State Department has required citizens from VWP countries to obtain visas if they do not have machine-readable passports and they wish to visit the U.S. One-time exemptions are no longer available to VWP nationals who do not possess a machine-readable passport or a non-immigrant visa.