EU nationals, in general, do not require a visa, however most other non-German participants do.
Please follow this link to find out whether you will need a visa: German Federal Foreign Office
Those who need a visa must satisfy the visa requirements of their local German Embassy/Consulate including:
- a confirmed travel booking, including flight, train and/or bus bookings, hotel reservation and health insurance
- a proof of purchase your online ticket to opti (one copy of the online ticket)
Therefore, all intended visitors should first buy a online ticket. Online order offers several cost and time saving benefits as described.
For visiting opti you do not need a visa invitation letter. Your embassy/consulate nevertheless requires an invitation letter? Here you can order a letter of invitation.
For frequently asked questions pertaining to visa applications please click here.