In case you haven't noticed, the shi-yaku-jin no hokora is not a member of the
神社本庁 [じんじゃほんちょう/ jinja honchô] or of any of the other shrine associations.

As such, I neither need or seek their accreditation for the hokora minzoku NEO-shintô practices. I have nothing against these associations, but simply don't need what membership in them would have to offer.

Also I'd rather not accept any limitations they might try to place on my practices. The idea being that these are my practices as validated by the local community instead of being imposed from without. And so my shintô practices remain uniquely mine; as it should be.

I'm not trying to be provocative with the above. (Okay maybe just a little.)

What I am emphasizing is that like all folk religions, "minzoku shintô belongs to its practitioners." It has only a passing agreement with the "orthodox" versions, and while it may be influenced by, it is not controlled by them.

The local community negotiates and shapes its particular sets of practices. Notice I said "sets" there.

Folk religions tend to have several sets of overlapping practices. There are the group practices that the entire community agrees on. Then there are family practices that are followed within a, usually consanguineous, group of people. And finally, there are individual practices which tend to be more idiosyncratic.

None of these sets require external validation by an "accredited" authority. They are all internally validated within the group, family, or individual.

That is after all what makes it a folk (expression of) religion.