To date, I believe there is a 9 p.m. threshold that the commission has decided to uphold. I know there were hearings held, but I don't know the logistics of how, if this were to be passed into law, the actual commission would make the laws. It's very vague, so I'm assuming that they're not constrained by any rules as to how they can regulate this.
On March 11th, 2008. See this statement in context.