A manufacturer or facility operator shall immediately notify the Commission of any known or suspected defect or malfunction in equipment, system, or software required to be tested, certified, and approved by the Commission. A manufacturer shall: Confirm in writing any notice given to the Commission verbally pursuant to §A of this regulation; and If required by the Commission, notify a facility operator of any known or suspected defect or malfunction in equipment, a system, or software installed in its facility. A facility operator shall immediately notify the Commission of any known or suspected defect or malfunction in equipment, system, or software required to be tested, certified, and approved by the Commission. A facility operator shall confirm in writing any notice given to the Commission verbally pursuant to §C of this regulation.