BCC / BCI - Which is it????

[Invictus]

Hey all,

I've been noticing a serious conflict of species classification going on all over the net. Here's the impression I was under, and what I had read from what I considered to be reliable sources:

BCC - Common and Surinam boas.
BCI - Others, including Redtails.

But, I've been noticing a few places listing common boas as BCI. Can anyone clarify for me, and back up with some kind of scientific resource, what I should be referring to my common boa as? Is he a BCC (as I've been talking about him here), or are common boas BCI?