Hi we are looking to buy our second home in warren county, NJ and the seller has chosen to not waive their right to confidentiality with regards to radon tests and/or existing mitigation systems. I understand a lot of the county, along with the surrounding counties, are potential hot spots for radon. The owners of the house are the original owners and the house was built in 2003. When we did a walk through on the house, we noticed there was a circuit breaker labeled "radon," but there was no mitigation system to be found anywhere. A recent discussion with the seller, though our agents, revealed they had the fan, tubing, etc. that the builder left them in case they wanted to install it. Would a radon test have been mandatory before the house was built? Or maybe it is common practice to install wiring for such a system just in case a problem comes up in the future? Any help would be greatly appreciated. Mike