So they are not necessarily auditing exactly what you've done or verifying what you've done, but also verifying if you are pushing yourself to that next level. They are comparing you against other member companies. I'm imagining then that other member companies need to share those practices with others also, so that each member company knows what other member companies are doing so there can be an ongoing challenge amongst each other to bring that forward also.
On May 6th, 2014. See this statement in context.