Non-EU residents who wish to visit Portugal for business or a holiday will need a Schengen Visa. Please visit the following website by the Portuguese Ministry of Foreign Affairs, to confirm if you would require a visa in entering Portugal, click here.

If you need to apply for a visa, please register for the conference, pay your registration fee in full and request an invitation letter from DSSV 2017 secretariat at Do not forget to include your full name, passport data (country, number, issue and expiry date), date of birth and contact details (address to which the letter of support has to be sent) in the email request.

Please give yourself sufficiently time to get the necessary form-filling completed in time for your departure. The Local Organizing Committee cannot accept any responsibility for visa applications. Where a participant is unable to attend because of failure to obtain a visa on time, the normal cancellation policy for registration fee will apply.