Because of the number of visa applications and the need for thorough security reviews, the visa application process may take several months. SPIE strongly encourages travelers to apply for their visas as early as possible — at least three to four months before the visa is needed. To request an invitation letter for visa application, please submit an Invitation Letter Request (must be signed into SPIE account to apply).

SPIE recommends that you secure your travel visa before registering for the conference as cancellations after the registration refund cutoff will result in denial of your registration funds.

Most people need a visa or an Electronic Travel Authorization (eTA) to travel to Canada – not both. Some people may only need their valid passport.

Find out what travel documents you need by visiting the Canadian government visa page.

SPIE recommends that you secure your travel visa before registering for the conference as cancellations after the preregistration cutoff may result in a cancellation fee.