I believe the law refers to a blade on each side of the knife.
What I was referring to Btown was a knife that doesnt have two full edges sharpened. Was hoping that by having a partly serrated edge my knife would then escape being classified under the laws in Mass as "double edged". Mass has every right to outlaw knives like stilettos, switchblades, or types of military knives made for the sole purpose of killing. This isnt one of them but its not that far from it in looks either, unfortunately its also so old it predates the time when dive knives cane with a blunt tip and therefore far less threatening in appearance. Its an old Cressi Norge, must be roughly 40 years old now.
I suppose if need be I could always take the edge off the upper since its never really used, only sharpened since it was there to be sharpened. Heres a pic, overall blade length is 5 3/4 inches.