In a decision announced Wednesday, Australia’s high court upheld the plain packaging act, which says that tobacco products must be in plain packaging without logos and bear graphic health warnings as of December 1.

Richard Daynard, a professor at Northeastern University School of Law in Boston and president of the school’s Public Health Advocacy Institute, called the Australian ruling “extraordinarily encouraging.”

“It means that governments are pretty much free to do what they feel is necessary to protect their population from tobacco marketing, including marketing on packages. In other words, it’s a blow for public health.”