또한 인증업소에 대한 사후관리가 중요하지만, 다양한 운영주체만큼 인증 기준이나 방법도 천차만별이라서 인증의 신뢰성을 확보하는 데 애로가 있다는 점도 지적됐다.
It was also pointed out that although follow-up management of certified businesses is important, there are difficulties in securing the reliability of certification because the certification standards and methods vary as much as the various operating entities.