Sadly, as much as I might wish it weren’t, smart meters like those used by your local electrical utility are allowed to operate on the ISM Band(s). The one saving grace here is that they cannot cause interference (AT ALL) to licensed users of these bands, and must accept any intereference they receive from any other users. In many cases there are primary and secondary users assigned to these bands, licensed users occupying unique frequencies in them, and at the very bottom of the food chain there are the ISM users.
In the Primary / Secondary user category we will often find Amateur Radio (HAM Radio). If you are an amateur, and you have noticed interference in a band you operate on (Most likely either the 900mhz or 2.4ghz areas) don’t discount the possibility that it might be that lovely little high tech meter on the side of your house or power shed. Also, don’t be afraid to check it out with a field strength meter. Finally, remember that Industry Canada and the FCC have a clear mandate to bitchslap people who don’t follow the rules.