I see what you are getting at by it being on the card. This still does not absolve you from getting the actual certification for those specialties.
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Sounds like if you read it the way you are then the "Fundies" card is good for Nitrox, Drysuit, Rescue and a whole host of certifications..
Take a single class and it includes "Intro to Tech", Nitrox, Drysuit AND Rescue.
Where on that GUE card do you see anything to justify your statements that it is the same as Intro to Tech, Rescue, Nitrox (other than 32%), or any host of other certifications?
It seems to me that you are TRYING to attribute a whole lot more claims to the value of that card than what anybody has said.
Even Hants didn't say it should be taken to be the same as a Rescue class from another agency. Nor did anyone say it should count as certification for anything else - other than Nitrox and Drysuit.
As for Intro to Tech, well, Intro doesn't really get you anything anyway. Intro to Tech is not a prerequisite to anything, so whether you consider Fundies to be equivalent is kind of academic. It doesn't make a single difference to anyone if a Fundies card is considered equal to an Intro card or not. Of course, an Intro card is not equal to a Fundies card, but that's a different question. Your Intro card is not going to get you into a GUE Tech 1 class.
Anyway...
You still haven't answered my earlier question: As a fill station operator, what would be your basis for denying a fill of EAN32 to someone with that Fundies card? I thought the only legit reason to deny someone a fill is if they did not have proof of training. That GUE card certainly seems to represent proof of training for use of EAN32. But, I'm not a certified fill station operator, so there could obviously be guidelines you have been trained on that I don't know about. And, like I said earlier, I would totally expect you to deny them a fill of any other blend than 32%. But, you said you wouldn't give them any kind of Nitrox.