As far as I know the island doesn't require the extra (2nd) fan.
They have changed the structural considerations (earthquake bracing, structural bracing etc.) a few times in the last year and rain water/air barrier considerations behind ALL siding types recently. Both additional required considerations in all new construction. That's my understanding anyway.
I'm 12hrs North, right on a division that changes requirements from "what they should have been all along" to "ok, who's paying for that" (HRV, triple pane loe E argon windows, R69 in the ceiling, 5/8" rain screen, etc.).
