As far as retro-active code compliance, a few of our local suburban Phila. townships have Use & Occupancy Certificate requirements for transfer of real estate. Along with the current requirements of installing GFCIs, Ground rods, and a few other things, I was informed that as of March 1st, they will also require AFCIs in order to sell a home. I am going to notify the realtors that I work for that the average cost of U&O related electrical work will now likely increase by a few hundred dollars. This does not include the problems I will encounter when I come across a Pushmatic of FPE panel. What's a fella to do? Whole panel changeout, subpanel? I dunno!
