Not necessarily. Listed hoods provide insurance that the product should have met the current codes and standards when it was manufactured, however the listing does not guarantee that the hood currently meets all of the current prevailing codes and standards. This is one very good reason that purchasing a used a hood is not a good idea unless the purchaser is an expert on hoods and up to date on all of the prevailing codes and standards. The codes are in continuous change and there is no guarantee that a hood that was Listed in the past is still compliant with the prevailing codes and standards.