The judges ruled that the 1997 law, which bans the broadcast of commercials, as well as advertising directed at young people and forces companies to publish warning labels on their packages, is justified because of the need to improve public health.

The court’s ruling ends a 10-year legal wrangle between the Canada’s federal government and Imperial Tobacco Canada, Rothmans, Benson & Hedges and JTI-Macdonald Corporation – three of the country’s leading tobacco companies.