A necessary item for various drivers license procedures for foreign citizens was changed on July 9, 2012.

One of the necessary items for foreign citizens for drivers license procedures was changed to a copy of their residence certificate, which used to be their alien registration certificate, due to abolishment of the Alien Registration Act.
Amendments are as follows.

Procedure Until July 6, 2012 After July 9, 2012
For taking a test Alien Registration Certificate A copy of residence certificate containing nationality (When a procedure is to apply for a certificate of driving history, nationality is not necessary.)
 For application after expiration  (Special new application)
Changing the entries
Changing from foreign drivers    license to domestic drivers license

Points of amendments (Q & A)

Q1 When I applied for a test, I presented my alien registration certificate on July 6, 2012. I took the test but I failed. When I apply again after July 9, 2012, do I need to bring a copy of my residence certificate containing my nationality?

A1
Yes, you do. You have to bring a copy of your residence certificate containing your nationality.
Every time you apply, you have to submit an application (with documents).

Q2 When I changed my foreign drivers license to a domestic one, I presented my alien registration certificate on July 6, 2012. I passed the test for driving knowledge on July 6 but if I have to take a test for driving technique after July 9, 2012, do I have to submit a copy of my residence certificate with my nationality?

A2
No, you don't. You don't have to submit a copy containing your nationality.
If you don't pass the test for driving technique and have to apply again after July 9, you need a copy of your residence certificate with your nationality.

Q3 I've heard that an alien registration certificate is deemed as a substitute of a residence card until a card is issued. If so, can't I use my alien registration certificate to apply for a drivers license?

A3
No, you can't.
It is only a transitional measure specified by the Immigration Control and Refugee Recognition Act to deem an alien registration certificate as a residence card. As for procedures for drivers license, an alien registration certificate is not substitutable.