Visa Information

Key Dates

  • March 13, 2026

    Paper Submission Deadline

  • May 1, 2026

    Acceptance Notification

  • May 15, 2026

    Author Registration Deadline

  • May 29, 2026

    Early Registration Deadline

  • May 18, 2026

    Advance Program Online

  • May 18, 2026

    Post-deadline Paper Submission Starts

  • June 19, 2026

    Post-deadline Paper Submission Deadline

  • June 29, 2026

    Post-deadline Paper Acceptance Notification

An official invitation letter will be sent upon request via email to the OECC 2026 Secretariat(registration@oecc2026.org).
This personal invitation is intended to facilitate travel and visa arrangements for registered participants. Visa application is the sole responsibility of participants.