Cool!
How interesting. If last year you got Cer A, but this year you renewed Cer B, USFSA only lists you as Cer B. But if you didn't take Cer B this year, they retain the Cer A listing from last year.
So when you renew a lower level rating, you should renew your higher level ratings at the same time...
There are some discrepancies between the certification status reported by USFSA and PSA, e.g., in the first couple pages,
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are both listed with no certifications by USFSA, but have certified Cer B by PSA the past two years. Maybe you have to tell USFSA when you certify with PSA? It's probably a good idea for coaches to check what their listings are.
Anyway, great links, even if, as you imply, certification level can't tell the whole story about how good a coach someone is. At the very least, a conscientious parent can verify the background check info of their child's coach, which might be a good idea.