Can a containment building itself be considered secondary containment?

Containment buildings can serve as secondary containment systems for tanks placed within the building under certain conditions. (a) A containment building can serve as an external liner system for a tank, provided it meets the requirements of § 267.196(a). (b) The containment building must also meet the requirements of § 267.195(a), (b)(1) and (2) to be considered an acceptable secondary containment system for a tank.