Abuja C-of-O now requires NIN, BVN. Existing landlords must apply for recertification - Wike
"There are a lot of discrepancies, a lot of cloning of C-of-Os, so we have come up with an idea that every allottee who seeks and applies for a C-of-O must supply his NIN; this is one of the features we are going to put in the new C-of-O.