I'll post an edit to my above comment. I do not want to give the impression that all CMRI chapels ban people for BOD. I've heard of a few cases in the MN area, but that's it. I have friends from MN and it's been a battleground for decades between the different groups and the people - both sspx and cmri. But, by and large, most of the turmoil has been from the sspx, because they've been there the longest.