This is from the actual Canada Elections Act, not Bill C-76. It's the Canada Elections Act for that provision. It's basically that for social media there can't be a differential pricing. It's applying to that the same rules for the lowest rates for radio and TV, so you're not going to have the phenomenon where certain entities may be getting preferable rates that aren't available to the rest.
On October 16th, 2018. See this statement in context.