S.E.S(Smart Entry Service)
Smart Entry service (S.E.S) refers to the state-of-the-art automatic entry/departure clearance system of Korea utilizing the passport information and biodata (fingerprint and face) at the Smart Entry Service gate for fast, smooth clearance.
It takes no more than 12 seconds to clear S.E.S.
Those older than 19 can access S.E.S even more conveniently as they are exempted from pre-registration from March 1, 2017.
The following are required to make pre-registration:
Passengers subject to pre-registration
Those 7-18 years old (those 7-14 years old require the presence of their parent and a family relations evidentiary document).
Those who were allowed to change fundamental personal information such as name and date of birth
Registered aliens older than 17
Directions to pre-registration office (Floors 2 and 3) in Gimpo Airport
S.E.S Pre-registration center prior to departure clearance in International Terminal (Floor 3)

STEP 01
Go through the ID check and the glass door

STEP 02
Pass the security conveyor belt

STEP 03
Go to the pre-registration center of Immigration Office right to Departure Clearance
Office behind the check-in counter on Floor 2 of International Terminal

STEP 01
Counter D area on Floor 2

STEP 02
Go to the passage inside

STEP 03
Pre-register available at the Immigration Office
of the Ministry of Justice
Procedures
Refer to the website of the Ministry of Justice for details (http://www.ses.go.kr)
-
STEP 01
Put the personal data page on the scanner.
-
STEP 02
Enter the gate when the automatic door opens.
-
STEP 03
Put the registered finger on the fingerprint scanner. The screen shows when the finger is registered.
-
STEP 04
Look at the camera for face recognition. This may not be required depending on the model of the gate
-
STEP 05
Go through the gate when the automatic door opens.