New CA real estate disclosure: Marijuana

The California Statewide home buyers and sellers advisory is a required disclosure document on all residential real estate transactions.  It now contains a disclosure about Marijuana (it also contains another disclosure stating that you might be hit by a stray golfball. Connection?). Where else but in CA, I ask you? It discloses, among other things, that the Feds don't view pot as legal, and it might cause mold or moisture problems if you cultivate it.  Gosh, that's important to know when you buy or sell a house. It also discloses that brokers have no expertise in this area, so please don't ask me anything about this.