A new campaign has launched in New Zealand in support of the country’s cannabis referendum, according to a Radio New Zealand report.

The nationwide poster campaign features 60 New Zealanders, the news outlet reported, including Dame Diane Robertson, executive director of the New Zealand Data Trust and the former Auckland Mission chief executive.

New Zealand published legislation in May to legalize adult-use cannabis, and New Zealanders were originally slated to vote on the proposal in September, although the general election has been moved to Oct. 17, according to U.S. News & World Report.

If the referendum passes, New Zealand will be the third country in the world to legalize adult-use cannabis, following Uruguay and Canada, the news outlet reported.