Australia's highest court has upheld a new government law on mandatory packaging for cigarettes that removes brand colours and logos from packaging.
The law requires cigarettes to be sold in olive green packets, with graphic images warning of the consequences of smoking.
Leading global tobacco manufacturers, including British American Tobacco and Philip Morris, had challenged the law.
The new packaging rules are scheduled to be implemented from 1 December 2012.
The BBC's Sydney correspondent Duncan Kennedy said the decision may have global ramifications for the cigarette makers.
"Whilst Australia might be a relatively small cigarette market, tobacco companies know that losing here could lead to a deluge of legislation elsewhere in their really big markets."
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BBC News - Australia cigarette plain packaging law upheld by court