Thinking more about what Rossi said here: "b) Obviously it is false, otherwise the plant would have been closed after the inspections . . ."
Parsing this, he claims:
1. There were inspections.
2. After these inspections, the plant remained open.
3. Therefore it passed.
I find this improbable. I think it is extremely unlikely that the state of Florida has a set of procedures to inspect or certify an aneutronic cold fusion nuclear reactor. Most scientists do not think such a thing can exist.
I suppose that if an inspector from Florida came, made measurements, and determined that the machine was producing far more output heat than the input electricity, he would not merely shrug his shoulders, sign off on the safety certificate, and go back to the office. This would be an unprecedented inspection. It would be unlike anything that has ever happened in Florida, or the U.S. or anywhere in the world. I think the inspector would be at a loss as to what to do. He would report this to his superiors. A Boiler Safety Section inspector would never take full responsibility for certifying such a machine on his own authority. They, in turn would be astounded, and they would take action and do something about it. Public safety officials when confronted by something that sounds very dangerous, with no legal codes to guide them, do not merely turn away and ignore it. Their first instinct would be to close it down and ask the next higher set of officials for guidance. If there was some sort of accident, these officials would lose their jobs and possibly face a jail sentence, so they would take action.
I find it absolutely impossible to believe that the authorities in the Boiler Safety Section would ignore a nuclear reactor that works by unknown principles, one that is producing dangerous levels of heat in a building not zoned for that. They would not let Rossi go on testing this device in a building with other people, in a crowded neighborhood.
To be blunt, I think the scenario outlined by Rossi in this one sentence is so utterly improbable that it is either a lie or a lunatic fantasy. I cannot imagine why anyone believes him, or takes this at face value.