Expats.kr : Foreign residents info. in korea

Foreign residents who want to stay in Korea for more than 90 days may want to apply for an Alien Registration Certificate from the Seoul Immigration Office. Application must be made within 90 days upon arrival.

The alien registration procedure applies to non-Korean nationals who wish to change their visa type, as well as those wanting to extend their stay period beyond 90 days. Any change in the Alien Registration Certificate must be reported to the Immigration Office within 14 days. When foreign residents move, they should notify their new district office within 14 days of the move.

The foreign registration card is valid for one (1) year. It can be renewed for another year before the expiry date.

Foreigners who intend to stay in Korea for more than 90 days: Registration must be done within 90 days of entry
Foreigners granted the status to stay or to change their status: Registration should be done immediately after receiving permission

Those on diplomatic duty, official missions and agreements, along with their family members (A-1, A-2, A-3) Those undertaking diplomatic, industrial, or other important duties for national security, along with their family members. Individuals granted special status by the Minister of Justice.
Foreigners from Canada planning to stay for less than six months, and who hold one of the following visas - Culture/Arts (D-1), Religious Works (D-6), Visit & Stay with family (F-1), Family dependency (F-3), others (G-1).