Which country launched the world's first government 'Green Public Procurement' program that requires all government agencies to prioritize environmental impact in purchasing decisions?

Test your knowledge about groundbreaking sustainability initiatives in government operations! Many countries are implementing innovative programs to reduce their environmental impact and lead by example. These initiatives range from green procurement policies to carbon-neutral government buildings and renewable energy mandates. How well do you know which nations are leading the charge with the most ambitious and successful government sustainability programs?

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Sweden (1997)
United States (2001)
Japan (2000)
Germany (1999)