I moved it to an appropriate location, because where you originally posted it, no one but yourself could reply to the thread ...
"Certification", also known properly as a "safety standards certificate", means that a specified list of technical requirements is in compliance with regulatory requirements. It DOES NOT mean that the bike is "safe", nor is it in any way a "warranty". The engine could be ready to explode into shrapnel and seize up and dump oil all over your tires in the process, but as long as the lights work, the horn works, the brakes work, it has a mirror, the steering head bearings aren't ready to fall apart, etc, it is "in compliance with regulatory requirements". Furthermore, that list of technical requirements is "as of the date and time of inspection". The headlight could work at the time that the inspector was looking at it, but if the bulb burns out tomorrow, too bad so sad.
This type of inspection could quite possibly result in a list of things that need to be fixed (and then re-inspected). This in no way implies that what's on that list includes EVERYthing that is wrong with the bike. An engine could have completely shot piston rings and be burning a litre of oil every 400 km and have a rod knock, but the bike it's in may have nothing wrong with it that's on the specified list of things that are on the inspection list.
I do safety inspections, although on a different type of apparatus (industrial), and the one thing that you NEVER say, is that something is "safe". It may be "in compliance". But it is only as "safe" as the idiot at the controls together with the clown doing the maintenance. "At the time of review" are words often seen, too. I don't know what's going to happen the moment I walk out the door. And very similarly, there is a specific list of things that have to be checked against requirements. Those requirements have nothing whatsoever to do with whether the machine is capable of producing good products at the production rate required. That's for someone else's inspection list.