Undead Labs has announced, via its Facebook page, that it has now resubmitted State of Decay to the Australian Classification Board.
State of Decay had previously been refused classification for its explicit drug use, but according to Undead Labs the team has made a few adjustments to the game for Australian audiences.
"Stimulants out!"Supplements" in," read the statment. "Who could possibly not like vitamins? They're good for you. Anyway, we're feeling pretty optimistic about our chances."
It's probably worth noting that Fallout 3 suffered similar issues at the hands of the Classification Board, but managed to get the game classified after changing the names of some of its 'supplements' in the game. Hopefully that sets some sort of precedent for State of Decay, but in the world of classification there really is no such thing as precedent.
Hopefully this is enough to get the game through.