Which government pioneered the world's first mandatory 'Green Public Procurement' policy requiring environmental criteria in all public purchasing decisions?

Test your knowledge about how governments are transforming their procurement practices to drive sustainability. In recent years, many governments worldwide have implemented green procurement policies to leverage their substantial purchasing power for environmental good. These initiatives not only reduce the environmental impact of government operations but also stimulate market demand for sustainable products and services. How well do you understand these transformative sustainability initiatives in the public sector?

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Sweden (1990)
United States (1993)
Japan (1995)
Germany (1997)