I guess this MCI-A is not that popular. The only time I ever saw it was at an inspector meeting where the AFC rep was pitching it to us.
It was not PVC jacketed.
It sounds like GW is talking about the regular old MC with a jacket and if it doesn't have the “armor is equipment grounding path component” printed on the white wire it is not MCI-A. I assume there is a green wire in there.
You do bond the armor but it is not your sole bonding path. You still terminate the green wire to the box and devices.
