What's the regular inspection cycle for a car?

pu1. As far as I know, it's the first time in four years, and after that, it's scheduled to be tested every two years.

2017-11-17

OK

pu2. Regular car inspections are done once every four years at first, and once every two years after that. For your information, it is cheaper to do it at the Korea Transportation Safety Authority's inspection center.

2017-11-17

OK

pu3. http://m.post.naver.com/viewer/postView.nhn?volume...
It is a car inspection system that has changed since 2016 announced by the Korea Transportation Safety Corporation.

2017-11-17

OK