In AU, it is classified as RC = Refused Classification, and this makes it illegal to sale the game there.
Apparently, "chems" using (or drug using) is the reason.

Source: http://www.australiangamer.com/news..._documents.html

Btw, I wonder if this will hinder/prohibit ElP from reviewing this game.

Importing. :D

The game will get released in Australia, mark my words, but in an edited state.

The issue in this country is that unlike in the US we have no right to freedom of speech that is enshrined in our consitution (And no one criticise that without a thorough understanding of constitutional law - the arguments against consititutionally guaranteed freedoms are just as numerous as the ones for) which means we don't rely on voluntary bodies such as the ESRB to self police the industry. Instead a government body called the OFLC must classify all film, literature, music and video games intended for commercial release in the country.

Don't panic, there is no big brother system in place here. Australia is traditionally very liberal... for instance on free to air TV the f-bomb is not censored and full frontal nudity is allowed during certain time slots. (Yes, I know I'm talking the OFLC up a bit but a lot of people from countries with legal systems like the US have trouble understanding that you don't need a bill of rights to live in a free society - not that the above comment was aimed at you KKai, we just have a lot of yanks on this board :P).

So why the problem with Fallout 3? Well the issue is that our law makers have denied video games an R18+ classification (our highest classification outside of X rated which is saved for you know what :P). So what this means is that if a game has content that - if it was a movie - would put it out of the MA15+ classification and into the R18+ classification then it can't be certified for sale in this country.

The problem is the government is yet to acknowledge that video games are not just for kids, claiming dangers to youth thanks to the interactive nature of the medium justify the denial of the R18+ classification. However there is a groundswell of support for brining in an R18+ classification from Australian state governments on account of the amount of money the games industry brings into our country. For instance Medieval II: Total War and Bioshock had significant portions of their development done in Australia.

Anyway as I said none of this really affects me... I'll be importing Fallout 3 from OS. Now that is strictly speaking illegal but quite frankly I've done it with so much stuff in the past I don't see this being an issue.

It will be coming to the shores of Oz . Bethesda has agreed to edit it.

The government in general have no objections to an R18 classification. It’s just one short sighted governor general that’s blocking everything. His last speech about the evils of games made absolutely no sense. The whole thing contradicted itself!

Well, 'chems' or not - it's on my 'to get' list.