Wouldnt the test just need to apply to all modes? If its a matter of automatically tuning through a series of conditions then its reasonable that those could be documented and tested by the facility / standards body.
That's why all dishwashers have a mode which takes 4 hours and does a lousy job. It's the mode that only uses 3 drips of water and a sip of electricity.
I've never had a problem with our one with it's 2.5hr eco mode, when running overnight (which is 90% of our loads). If we need a quick load during the day, we'll use the 40min cycle. Either way the wash quality seems the same.
I would put eco mode as 'passable', but you have to remember to scrape off the plates well beforehand, rince especially gungy stuff (like porridge), and to probably do a bit of hand drying of items afterwards.
One the other hand, the 'intensive' mode only uses 50% more electricity, takes a quarter of the time, leaves the plates clean and dry every time, and uses a hotter wash temperature which I suspect is better at killing pathogens, and doesn't need any pre-rinsing or plate scraping beforehand. It's a no-brainer in my mind.
The car itself must keep track of how much Nox it has produced and how many miles it's driven. The ratio must stay below some legal limit (or you pay an extra pollution tax to go over it)